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Comparison of ZyXEL NSA325 and QNAP TS-451A

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
ZyXEL NSA325 (NSA325)
ZyXEL NSA325 (NSA325)
QNAP TS-451A (TS-451A)
QNAP TS-451A (TS-451A)
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Launch 2012 2016
Class Small office / Home office Small office / Home office
Body
Dimensions 108 x 205 x 147 mm 169 x 160 x 219 mm
Weight 1.08 kg 3 kg
Disks
Disk bays 2 x 3.5" SATA II 4 x 3.5" SATA III
RAID JBOD
RAID0
RAID1
JBOD
RAID0
RAID1
RAID10
RAID5
RAID6
SSD support no yes
Network
LAN ports 1 x Gigabit Ethernet 2 x Gigabit Ethernet
Wireless no yes, with USB dongle
Protocols CIFS/SMB
FTP
HTTP
NFS
AFP
CIFS/SMB
FTP
ISCSI
NFS
SFTP
WEBDAV
P2P support BitTorrent BitTorrent
Media server DLNA
UPnP
iTunes
DLNA
UPnP
iTunes
Cloud backup Dropbox Amazon S3
Box
Dropbox
Google Drive
Microsoft OneDrive
Connectivity
USB ports 2 x USB 2.0
1 x USB 3.0
3 x USB 3.0
eSATA ports no no
System
CPU Marvell Armada 370 88F6707 @ 1.2 GHz Intel Celeron N3060 dual-core @ 1.6 GHz
RAM 512 MB 2 GB (upgradable)
Flash 128 MB 4 GB
Operating system ZyXEL QNAP QTS
Alternative OS    
Power
Power supply 12 V / 5 A 12 V / 8 A
Consuption 27 W / 7 W 27 W / 21.1 W
Fans 1 x 80 mm 1 x 70 mm
Noise level   18.1 dB(A)
Features
Specials   Failover and link aggregation
HDMI output
Infrared receiver
Audio input
Audio output
Administration
Default IP DHCP DHCP
Default username admin admin
Default password 1234 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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