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Comparison of Shuttle OMNINAS KD21 and QNAP TS-431+

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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Shuttle OMNINAS KD21 (KD21)
Shuttle OMNINAS KD21 (KD21)
QNAP TS-431+ (TS-431P)
QNAP TS-431+ (TS-431P)
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Launch 2013 2015
Class Small office / Home office Small office / Home office
Body
Dimensions 169.8 x 90 x 225 mm 169 x 160 x 219 mm
Weight 1.93 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 yes yes
Network
LAN ports 1 x Gigabit Ethernet 2 x Gigabit Ethernet
Wireless no yes, with USB dongle
Protocols AFP
CIFS/SMB
FTP
AFP
CIFS/SMB
FTP
ISCSI
NFS
SFTP
WEBDAV
P2P support BitTorrent BitTorrent
Media server DLNA
UPnP
iTunes
DLNA
UPnP
iTunes
Cloud backup no Amazon S3
Connectivity
USB ports 1 x USB 2.0
2 x USB 3.0
3 x USB 3.0
eSATA ports no no
System
CPU Marvell Armada 370 88F6707 @ 1 GHz Annapurna AL212 dual-core @ 1.4 GHz
RAM 512 MB 1 GB DDR3
Flash 1 GB 512 MB
Operating system Shuttle QNAP QTS
Alternative OS    
Power
Power supply 12 V / 5.4 A 12 V / 7.5 A
Consuption 19 W / 9.6 W 26.15 W / 11.89 W
Fans 1 x 70 mm 1 x 120 mm
Noise level 23 dB(A) 17.5 dB(A)
Features
Specials SD card reader  
Administration
Default IP 169.254.100.200 DHCP
Default username admin admin
Default password [blank] admin

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