Compare
519,-- 568,-
- 645,-
- 449,-
- 725,-
Average rating
- 8.9/10
4.4 / 5 stars - 8.9/10
4.4 / 5 stars - 9/10
4.5 / 5 stars - 8.9/10
4.4 / 5 stars - 0/10
0 / 5 stars
Most helpful review
Product number
- 865076
- 865961
- 830776
- 865081
- 866809
Manufacturer code
- DS420+
- DS920+
- RS819
- DS720+
- TS-451DeU-2G
Brand
- Synology
- Synology
- Synology
- Synology
- QNAP
Warranty
- 2 years
- 3 years
- 2 years
- 3 years
- 2 years
Warranty type
- Carry-in warranty
- Carry-in warranty
- Carry-in warranty
- Carry-in warranty
- Carry-in warranty
Old product returned for free
- Yes
- Yes
- Yes
- Yes
- Yes
Number of hard drive bays
- 4
- 4
- 4
- 2
- 4
Internal RAM
- 2 GB
- 4 GB
- 2 GB
- 2 GB
- 2 GB
Total number of RAM slots
- 1
- 1
- 0
- 1
Integrated hard drive
- No
- No
- No
- No
- No
Suitable for hard drive size
- 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD, M.2
- 2,5 inch HDD, 3.5-inch HDD
- 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD
- 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD, M.2
- 2,5 inch HDD, 2,5 inch SSD, 3.5-inch HDD
Cache memory
- 0 MB
- 0 MB
- 0 MB
- 0 MB
- 4 GB
SATA connector type
- S-ATA (III)
- mSATA (6Gb/s)
- S-ATA (III)
- S-ATA (III)
- PCI-e 2.0 x4, S-ATA (III)
RAID
- JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID
- JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID
- JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID
- JBOD, RAID 0, RAID 1, Synology Hybrid RAID
- BeyondRAID, Hot spare, JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 5+spare, RAID 6, SimplyRAID
NAS functions
- Backup server, Download server, FTP server, Mail server, Photo server, Surveillance station, VPN server, Web server, iTunes server
- Backup server, Download server, FTP server, Mail server, Photo server, Surveillance station, VPN server, Web server, iTunes server
- Backup server, Download server, FTP server, Mail server, Media server, Photo server, Surveillance station, VPN server, Web server, iTunes server
- Backup server, Download server, FTP server, Photo server, Surveillance station, VPN server, Web server
- Backup server, Database server, Download server, FTP server, Mail server, Media server, Photo server, Print server, Surveillance station, VPN server, Web server, iTunes server
NAS application center
- Yes
- Yes
- Yes
- Yes
- Yes
DLNA
- No
- No
- No
- No
- Yes
UPnP AV support
- No
- No
- No
- No
- Yes
FTP server
- Yes
- Yes
- Yes
- Yes
- Yes
On/off switch
- Yes
- Yes
- Yes
- Yes
- Yes
Kensington lock
- No
- No
- No
- No
- Yes
Apple Time Machine support
- Yes
- Yes
- Yes
- Yes
- Yes
Chromecast support
- Yes
- Yes
- Yes
- Yes
- Yes
Maximum number of simultaneous users
- More than 10
- More than 10
- More than 10
- More than 10
- More than 10
Number of IP camera licenses included
- 2
- 2
- None
- 2
- 8
Plex support
- No
- Yes
- No
- Yes
- Yes
Automatic switch on/off
- No
- Yes
- Yes
- No
- Yes
Suitable for IFTTT
- No
- No
- No
- No
- Yes
Recommended for use
- Making a backup, Save photos and videos
- Business use, Making a backup, Media streaming, Personal cloud, Save photos and videos, Storing games
- Making a backup, Save photos and videos
- Making a backup, Media streaming, Save photos and videos
- Business use, Making a backup, Media streaming, Personal cloud, Save photos and videos
Plex support type
- Full HD (1080p)
- 4K (Ultra HD) (2160p), Full HD (1080p), HD Ready (720p), SD (480p)
Best tested
- No
- No
- No
- No
- No
LACP Link aggregation
- Yes
- Yes
- Yes
- Yes
- Yes
iSCSI support
- Yes
- Yes
- Yes
- Yes
- Yes
Thunderbolt connector
- No
- No
- No
- No
- No
Connection type
- Wired
- Wired
- Wired
- Wired
- Wired, Wireless
Ethernet speed
- Gigabit Ethernet (1000Mbps)
- Gigabit Ethernet (1000Mbps)
- Gigabit Ethernet (1000Mbps)
- Gigabit Ethernet (1000Mbps)
- 2.5 Gigabit Ethernet (2500 Mbps)
Number of ethernet ports
- 2
- 2
- 2
- 2
- 2
Bluetooth
- No
- No
Number of female standard USB-A ports
- 2
Female standard USB-A port version
- 3.0
ANT+
- No
Processor
- Intel Celeron
- Intel Celeron
- RealTek
- Intel Celeron
- Intel Celeron
Processor brand
- Intel
- Intel
- RealTek
- Intel
- Intel
Processor family
- Celeron
- Celeron
- RealTek
- Celeron
- Celeron
Processor code name
- Gemini Lake Refresh
- Gemini Lake Refresh
- RealTek
- Celeron
- Gemini Lake
Processor cores
- Dual-core (2)
- Quad-Core (4)
- Quad-Core (4)
- Quad-Core (4)
- Quad-Core (4)
Clock speed
- 2 GHz
- 2 GHz
- 1,4 GHz
- 2 GHz
- 2 GHz
Turbo speed
- 2,9 GHz
- 2,7 GHz
- 0 GHz
- 2,7 GHz
- 2,7 GHz
Depth
- 23 cm
- 23 cm
- 32,8 cm
- 23 cm
- 50,9 cm
Width
- 20 cm
- 20 cm
- 47,8 cm
- 11 cm
- 48,2 cm
Height
- 17 cm
- 17 cm
- 4,4 cm
- 17 cm
- 4,3 cm
Type NAS
- Upright
- Upright
- Rackmount
- Upright
- Rackmount
Color
- Black
- Black
- Black
- Black
- Black
Weight
- 2,18 kg
- 2,24 kg
- 4,34 kg
- 1,51 kg
- 8,12 kg