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Comparison of Western Digital My Cloud EX2 Ultra and 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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Adding/changing a NAS
Western Digital My Cloud EX2 Ultra (WDBVBZ0000NCH)
Western Digital My Cloud EX2 Ultra (WDBVBZ0000NCH)
QNAP TS-251 (TS-251)
QNAP TS-251 (TS-251)
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Launch 2016 2014
Class Small office / Home office Small office / Home office
Body
Dimensions 165 x 157 x 99 mm 169 x 102 x 219 mm
Weight 800 g 1.28 kg
Disks
Disk bays 2 x 3.5" SATA III 2 x 3.5" SATA III
RAID JBOD
RAID0
RAID1
JBOD
RAID0
RAID1
SSD support no yes
Network
LAN ports 1 x Gigabit Ethernet 2 x Gigabit Ethernet
Wireless no yes
Protocols AFP
CIFS/SMB
FTP
ISCSI
SFTP
WEBDAV
AFP
CIFS/SMB
FTP
ISCSI
NFS
SFTP
WEBDAV
P2P support BitTorrent
eMule
BitTorrent
Media server DLNA
UPnP
iTunes
DLNA
UPnP
iTunes
Cloud backup Amazon S3
Dropbox
ElephantDrive
Amazon S3
Dropbox
ElephantDrive
Google Drive
Connectivity
USB ports 2 x USB 3.0 2 x USB 2.0
2 x USB 3.0
eSATA ports no no
System
CPU Marvell Armada 385 88F6820 dual-core @ 1.3 GHz Intel Celeron J1800 dual-core @ 2.4 GHz
RAM 1 GB DDR3 1 GB (upgradable)
Flash 512 MB
Operating system WD My Cloud OS QNAP QTS
Alternative OS
Power
Power supply 12 V / 4 A 12 V / 5 A
Consuption 19.22 W / 10.28 W
Fans fanless 1 x 70 mm
Noise level 15.4 dB(A)
Features
Specials
Administration
Default IP DHCP DHCP
Default username admin admin
Default password [blank] 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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