NAS & Storage Servers

Storage
Total installed storage capacity	32 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	32 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,300.87

RRP £1,636.93

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Storage
Total installed storage capacity	24 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	24 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,149.07

RRP £1,512.95

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Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,338.12

RRP £1,917.97

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Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,692.43

RRP £2,200.16

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Storage
Total installed storage capacity	24 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	24 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,180.18

RRP £1,416.21

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Storage
Total installed storage capacity	72 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	72 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£3,594.06

RRP £5,361.14

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Storage
Total installed storage capacity	8 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	8 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£873.80

RRP £1,077.69

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Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£2,571.19

RRP £3,299.70

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Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	48 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£1,731.50

RRP £2,193.23

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Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

£973.98

RRP £1,274.29

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Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	16 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

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Storage
Total installed storage capacity	32 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)

Synology DS423+ NAS Rack (8U) Ethernet LAN Black J4125

Storage
Total installed storage capacity	32 TB
Storage drives installed	Yes
Installed storage drive type	HDD
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Hot-swap drive bays	Yes
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Supported storage drive interfaces	Serial ATA
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
Processor
Processor manufacturer	Intel
Processor threads	4
Processor cache	4 MB
Processor boost frequency	2.7 GHz
CPU configuration (max)	1
Processor frequency	2 GHz
Processor family	Intel® Celeron®
Processor model	J4125
Processor cores	4
Number of processors supported	1
Memory
Internal memory type	DDR4
Internal memory	2 GB
Maximum RAM supported	6 GB
Memory form factor	SO-DIMM
Network
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Supported network protocols	SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP / VPN (PPTP, OpenVPN™, L2TP)
iSCSI support	Yes
Ports & interfaces
USB port	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Ethernet LAN (RJ-45) ports	2
Hard drive
RAID support	Yes
Supported file systems	BTRFS, FAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID levels	0, 1, 5, 6, 10, JBOD
Design
Built-in speaker(s)	No
Cooling type	Active
Fan diameter	9.2 cm
Built-in display	No
Cable lock slot type	Kensington
Product colour	Black
Number of fans	2 fan(s)
LED indicators	Yes
Chassis type	Rack (8U)
Cable lock slot	Yes
Technical details
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Built-in display	No
Card reader integrated	No
Product colour	Black
Multilingual support	Yes
LED indicators	Yes
Chassis type	Rack (8U)
Buzzer	Yes
Number of fans	2 fan(s)
Performance
Built-in FTP server	Yes
System log	Yes
Browser supported	Google Chrome®, Firefox®, Microsoft Edge®, Safari 13+
Type	NAS
Device class	Home & Home Office
Backup function	Yes
Backup features	Cloud, iSCSI LUN
Card reader integrated	No
On/off switch	Yes
Security algorithms	HTTPS, SSH, SSL/TLS
Reset button	Yes
Operating system installed	DiskStation Manager
Multilingual support	Yes
Buzzer	Yes
Access Control List (ACL)	Yes
Cooling
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	2 fan(s)
Security
Cable lock slot type	Kensington
Security algorithms	HTTPS, SSH, SSL/TLS
Cable lock slot	Yes
Access Control List (ACL)	Yes
Software
Operating system installed	DiskStation Manager
Management features
On/off switch	Yes
Reset button	Yes
Power
Power supply location	External
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Redundant power supply (RPS) support	No
Number of power supply units	1
External power adapter	Yes
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Packaging content
External power adapter	Yes
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Operational conditions
Storage temperature (T-T)	-20 - 60 °C
Storage relative humidity (H-H)	5 - 95%
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%
Operating altitude	0 - 5000 m
Packaging data
Cables included	AC, LAN (RJ-45)