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Comparison of QNAP TS-251

The side-by-side comparison of the devices’ specifications. The comparison table below makes it easier to choose the most fitting NAS.

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QNAP TS-251 (TS-251)
QNAP TS-251 (TS-251)
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Launch 2014
Class Small office / Home office
Body
Dimensions 169 x 102 x 219 mm
Weight 1.28 kg
Disks
Disk bays 2 x 3.5" SATA III
RAID JBOD
RAID0
RAID1
SSD support yes
Network
LAN ports 2 x Gigabit Ethernet
Wireless yes
Protocols AFP
CIFS/SMB
FTP
ISCSI
NFS
SFTP
WEBDAV
P2P support BitTorrent
Media server DLNA
UPnP
iTunes
Cloud backup Amazon S3
Dropbox
ElephantDrive
Google Drive
Connectivity
USB ports 2 x USB 2.0
2 x USB 3.0
eSATA ports no
System
CPU Intel Celeron J1800 dual-core @ 2.4 GHz
RAM 1 GB (upgradable)
Flash 512 MB
Operating system QNAP QTS
Alternative OS
Power
Power supply 12 V / 5 A
Consuption 19.22 W / 10.28 W
Fans 1 x 70 mm
Noise level 15.4 dB(A)
Features
Specials
Administration
Default IP DHCP
Default username admin
Default password admin

A maximum of 3 devices can be compared at the same time. To add or change a NAS, type the name of the NAS you’re looking for in the search field of the table’s column, then click on the device’s name in the drop-down list of search results.

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