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Comparison of Buffalo TeraStation 5200DN and QNAP TS-251A

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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Buffalo TeraStation 5200DN (TS5200DN)
Buffalo TeraStation 5200DN (TS5200DN)
QNAP TS-251A (TS-251A)
QNAP TS-251A (TS-251A)
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Launch 2015 2016
Class Small / Medium business Small office / Home office
Body
Dimensions 230 x 170 x 170 mm 169 x 102 x 219 mm
Weight 4.5 kg 1.28 kg
Disks
Disk bays 2 x 3.5" SATA II 2 x 3.5" SATA III
RAID JBOD
RAID0
RAID1
JBOD
RAID0
RAID1
SSD support no yes
Network
LAN ports 2 x Gigabit Ethernet 2 x Gigabit Ethernet
Wireless no yes, with USB dongle
Protocols AFP
CIFS/SMB
FTP
HTTP
NFS
AFP
CIFS/SMB
FTP
ISCSI
NFS
SFTP
WEBDAV
P2P support no BitTorrent
Media server DLNA
Squeezebox
UPnP
iTunes
DLNA
UPnP
iTunes
Cloud backup Amazon S3
Dropbox
Amazon S3
Box
Dropbox
Google Drive
Microsoft OneDrive
Connectivity
USB ports 2 x USB 2.0
2 x USB 3.0
3 x USB 3.0
eSATA ports no no
System
CPU Intel Atom D2550 dual-core @ 1.86 GHz Intel Celeron N3060 dual-core @ 1.6 GHz
RAM 2 GB DDR3 2 GB (upgradable)
Flash   4 GB
Operating system Buffalo QNAP QTS
Alternative OS    
Power
Power supply 65 W, internal 12 V / 5.4 A
Consuption   16.2 W / 7.9 W
Fans 1 x 92 mm 1 x 70 mm
Noise level   18.3 dB(A)
Features
Specials LCD Panel
Failover and link aggregation
Failover and link aggregation
HDMI output
Infrared receiver
Audio input
Audio output
Administration
Default IP DHCP DHCP
Default username admin admin
Default password 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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