Zyxel NSA320 2-Bay Power NAS Appliance

Product overview



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Access, Share and Enjoy It Everywhere!

With the latest personal cloud feature of ZyXEL’s Media Servers, you can freely access, share and enjoy digital media contents through your smartphones and tablets with the Polkast app, no matter where you are!


Powerful HD Multimedia Streaming at Fingertips!

The ZyXEL Media Server is more than just a central home media library! With the Polkast support, you can virtually take thousands of photos, videos and music with you, wherever you are.



Easy to Access

When you’re in the office, you can easily continue the unfinished presentation files that you’ve stored on the ZyXEL Media Server at home. Just click the Polkast app on your smartphone or tablet, and then you can easily access your home media server and continue working on the presentation files right away.



Enjoyment Everywhere

At the end of an exhausted working day, you may want to share some family photos or videos with your friends in a café. Just click the Polkast app on your smartphone or tablet, you can immediately enjoy photos, music and videos stored on the ZyXEL Media Server on your smartphone screen with just a few clicks. Everything is at your fingertips.



Share Easily

On a weekend, you go to a friend’s house-warming party. If you’d like to share your vacation travel photos, just click the Polkast app on your smartphone to immediately share the photos with friends with just a few taps. How about sharing beautiful scenes from a trip with your family when you’re still on the road? Take pictures or videos with your smartphone or tablet, and send it to your ZyXEL Media Server with Polkast. A few seconds later, your family can see the photos on Facebook, YouTube or Flickr.



Simple Setup

Enabling access to your personal data from anywhere is simple with ZyXEL. Just install the Polkast app* on your smartphone and/or tablet, register through the app, enable Polkast in your ZyXEL Media Server and you’re ready to roam freely with all the data at your finger tips. Check out how simple it is to enable Polkast on your ZyXEL Media Server!

*The app is available on the Polkast Web site at



Product Description
ZyXEL NSA-320 - NAS server
Device Type
NAS server
Host Connectivity
Gigabit Ethernet
Max Supported Capacity
4 TB
Installed Devices / Modules Qty
0 (installed) / 2 (max)
Dimensions (WxDxH)
10.8 cm x 20.5 cm x 14.7 cm
1.06 kg
Marvell 6281 1.2 GHz
Storage Controller
RAID - SATA 3Gb/s - RAID 0, 1, JBOD
Network adapter 10Mb LAN, 100Mb LAN, GigE
AC 120/230 V ( 50/60 Hz )
System Requirements
Microsoft Windows XP, Microsoft Windows XP 64-bit Edition, Microsoft Windows 7, Microsoft Windows 7 64-bit Edition, Microsoft Windows Vista (32/64 bits)
Microsoft Certification
Compatible with Windows 7
Manufacturer Warranty
2 years warranty



Device Type
NAS server
Host Connectivity
Gigabit Ethernet
Max Supported Capacity
4 TB
Installed Devices / Modules Qty
0 (installed) / 2 (max)
10.8 cm
20.5 cm
14.7 cm
1.06 kg

Processor / Memory

Processors Installed
Marvell 6281 1.2 GHz
RAM Installed

Storage Controller

RAID - internal
Interface Type
SATA 3Gb/s
Supported Devices
Hard drive
Max Storage Devices Qty
RAID Level

Hard Drive



Network adapter
Data Link Protocol
10Mb LAN, 100Mb LAN, GigE
Network / Transport Protocol
Network Services Compatibility
Microsoft CIFS, Network File System (NFS), FTP, Server Message Block (SMB), XFS, HTTP, HTTPS
DHCP support, iTunes server, Jumbo Frames support, Samba support, FTP server, BitTorrent Client, UPnP Media Server
Compliant Standards

Expansion / Connectivity

Expansion Bays
2 (total) / 2 (free) x internal - 3.5"
1 x Ethernet 1000Base-T - RJ-45 , 3 x USB 2.0 - Type A


Compatible with Windows 7
"Compatible with Windows 7" software and devices carry Microsoft’s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7.
Compliant Standards
FCC Class B certified, C-Tick, BSMI


Power Device
X external power adapter
Voltage Required
AC 120/230 V ( 50/60 Hz )
Power Consumption Operational
32.2 Watt

Software / System Requirements

Software Included
Drivers & Utilities
OS Required
Microsoft Windows XP, Microsoft Windows XP 64-bit Edition, Microsoft Windows 7, Microsoft Windows 7 64-bit Edition, Microsoft Windows Vista (32/64 bits)

Manufacturer Warranty

Service & Support
2 years warranty
Service & Support Details
Limited warranty - 2 years

Environmental Parameters

Min Operating Temperature
0 °C
Max Operating Temperature
40 °C
Humidity Range Operating
0 - 95% (non-condensing)

Customer reviews

Write review The opinions expressed in this reviews section are those of our customers and not of BT Shop. Nothing contained herein amends BT Shop’s terms and conditions.
5* Just the job
Reviewed by Dan on 23/07/2013
I needed more storage and a way to stream media to my TV & other items, this does the job perfectly; especially when coupled with the WD TV Live media player (see seperate review)
A few teething troubles getting it connected on my network but that was just my firewall and an update to the unit's firmware; apart from that worked immediately and I was transferring & downloading files within the hour.
Placed mine in the hall near the router and fan noise is not an issue, don't think it would be in any room to be honest.
5* Zyxel NSA320 2-Bay Power NAS
Reviewed by Anonymous on 20/03/2014
I bought the Zyxel NAS as a remote replication NAS for my QNAP 4 drive NAS. I was a bit apprehensive to start with because of the price. However I could not be happier. Within an hour it was setup and remote replication was setup up from the QNAP. The Zyxel just works. Very good for the money. If you are considering a NAS to start you off, look no further.
4* Its good if you're a techie & don't need support.
Reviewed by Shai on 11/02/2014
Its fairly quiet (I can just about sleep with it in the same room) and reasonably quick, has lots of good functions that you can add if you need (I use the Polkast and Backup). However, the user interface is really poor - you have to know what you're doing or don't bother - however, I understand this is typical of this kind of device. One thing that was really annoying was that it kept telling me there was a firmware upgrade available but it wouldn't update cos it couldn't find the update. I couldn't find the update file on their website. I eventually tracked down an update file in a German forum (I don't know German), and the update worked. Finally, Zyxel customer support is non-existent - they didn't bother replying to my query. Would have given 5 except for these two things.

Overall, I'm very happy with it - got two 2TB disks in (one as a backup to the other and all my devices).
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