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QNAP TS-251 2 Bay Desktop NAS Enclosure

4.2 out of 5 stars 41 customer reviews
| 30 answered questions

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  • Dual-core Intel 2.41GHz CPU and 1GB RAM, delivering up to 220MB/s read & write speed
  • On-the-fly and offline Full HD hardware accelerated video transcoding
  • Personal cloud for creating a multimedia library with DLNA, AirPlay, and Plex support
  • Up to 7.1 channel audio passthrough and high-quality multimedia playback via HDMI
  • Centralized storage, file sharing and backup

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Product Information

Technical Details
BrandQNAP
Item Weight1.3 Kg
Product Dimensions16.8 x 22.5 x 10.2 cm
Item model numberTS-251
SeriesTS-251
ColorEmpty Enclosure
Form Factor2.5/3.5"
Processor BrandIntel
Processor Speed2.41 GHz
Processor Count2
RAM Size1 GB
Hard Drive InterfaceSerial ATA-600
Number of USB 2.0 Ports2
Number of HDMI Ports1
Number of Ethernet Ports2
Wattage19.22 watts
Operating SystemQNAP Turbo System
  
Additional Information
ASINB00KXP9T4A
Best Sellers Rank 37,270 in Computers (See top 100)
Shipping Weight2.4 Kg
Date First Available23 Jun. 2014
  
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Product Description

Product Description

Qnap Turbo NAS Server TS-251 2 HD NAS RAID Tower / Celeron 2.41GHz Dual-Core / 1GB / 2GbE, HDMI / Storage System

Box Contains

1 x TS-251
Cables
Screws & Manual


From the Manufacturer

TS-251 TS-231 TS-431 TS-253 PRO TS-453 PRO
Processor Dual Core Intel Celeron 2.41GHz Dual Core ARM 1.2GHz Dual Core ARM 1.2GHz Quad Core Intel Celeron 2.0GHz Quad Core Intel Celeron 2.0GHz
RAM 1GB 512MB 512MB 2GB/8GB options (Max 8GB) 2GB/8GB options (Max 8GB)
Drive Bays 2 2 4 2 4
HDMI Port No No
IP Camera Support 2 included / 24 maximum 2 included / 8 maximum 2 included / 8 maximum 2 included / 24 maximum 2 included / 24 maximum
LAN ports (1GbE) 2 2 2 2 4
Lockable Drive Bays No No No
Support for Expansion Yes (1 x UX-500P or 1 x UX-800P) No No Yes (1 x UX-500P or 1 x UX-800P) Yes (1 x UX-500P or 1 x UX-800P)
Infrared Remote Sensor No No

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I now realize that I have definitely bought the wrong thing for my needs.

There are two versions of this the 251 and the 251+ . Stupid numbering system. The 251+ has a quad core CPU but this only has a dual core, which is not really fast enough for transcoding movies.

It is really difficult to set up. What is the difference between static volumn, thick volumn and thin volumn. I don't know and the QNAP instructions are useless on this, and so are the forums.

In any event it doesn't appear you can set it up as two separate drives which is what I wanted.
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Verified Purchase
Does everything I need and More... I Added 8GB RAM to mine, and now works like a dream.
Media Server work great without needing PLEX or KODI... in my opinion. Remote access is a doddle, VPN works as you would expect, and bypasses Geo blocking.
Sharing files across the world is so simple, even my Mother can understand it
If you want more... then buy the 251+ with Quad core processor, but mine does all I need..
Tried Virtual Machines, Mandriva, and Server 2012.. although the work adeqatly. they are a bit slow, but great, if you just want to learn about something different
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Verified Purchase
Having owned various forms of simple plug in type storage in the past, ie usb flash drives/usb external hard drives/sd cards etc I thought it was about time I upgraded to something shared/networked with a larger capacity to centrally backup all my old devices and act as a future backup location for all new stuff. As I was upgrading I thought it worthwhile getting something with more features that could handle both the storage part and also do all the extras that a home media server/pc could do. So far I am very impressed with the features on this thing – my uses for it read like a veritable shopping list and I doubt I am using it to its full potential yet!

Install of drives and initial setup was simple and straight forward, just a matter of following the prompts and selecting a couple options. Once up and running I copied all the data from my old usb drives and harddrives simply by plugging them into the unit and using the “USB One Touch Copy” feature which saved loads of time instead of having to copy the data over the network. Data backed up I set about playing with the other features and so far am using it for the below as well as just for “storage” -

Phone photo & video backup – QNAP’s qfile app backs up all the photos and videos on all the phones in the house. Great, as my dropbox account is always full from the photo auto upload, and copying images off the iphone if you don’t use itunes is a real pain.

Media Center/Home PC – Connected it via HDMI to the TV and use Kodi to watch videos stored locally and managed to get ITV’s catch-up player add-on/App installed and working (iplayer works also, but my SMART TV has it already). Also using the chrome browser to surf the net and watch some youtube videos on the tv with a wireless keyboard/mouse.
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Verified Purchase
I bought this as a "marginal" upgrade for a QNAP 269L I owned. The reason was primarily for the Spotify support on the "HD Station" app.

The two are very similar in spec terms, but the 251 is more upgradeable, has a faster processor (benchmarks like the 269 Pro model). Part of the reason for purchasing was that it was available for a very low price (approx 280) which was £100 less than the 269L.

Whilst the 251 edges 269L on spec and performance, it does have its drawbacks.

The 269 is a really nicely engineered metal construction. The 251 is largely plastic. QNAPs aren't cheap and with the older 269 you did feel that at least some of that price was going on the materials used for the enclosure.

Migrating the disks was incredibly easy, though I did encounter one issue due to the Samba upgrade on the 251 (V4 vs V3).

The seller I bough from shipped it with a Euro kettle lead which whilst annoying was easy to fix.

Also, this may be slightly quieter than the 269 which is odd as the disks are the same.

If you need more memory DO NOT buy the QNAP sold RAM. It's ridiculously overpriced. There are lots of alternatives available. In my case I bought 2 x 4GB Kingston modules. On this model the memory MUST be matched (unlike the 269L).

If you can buy this for £280 as I did it's a good price, but I'd feel rather short changed if bought near RRP at 380ish now that it's now largely plastic.

Overall however it's a very impressive piece of kit with a huge range of app support. It's really a mini home / SOHO server. You don't need any linux skills at all, though if something does ever go wrong they do come in handy.
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**** Final update - 1st of June 2015 ******
After switching from Android to iPhone I have decided that I've had enought of Qnap products. Their Q-range of apps for Android is just OK but their is a complete lack of download station or gallery for iOS and I've had enough of this.

In general, I find their software on iOS/Android really lacking in comparison to Synology and attractive visual presentation of Synology is just one factor among others.

I bought Synology DS415+ and I had no regrets putting Qnap into it's original box, I was even happy to install all the Synology apps and being able to access my photo/video/music collection without any problems on iPhone.

I find Synology DSM more intuitive than Qnap's QTS. In general Synology and Qnap offer similar functionality and while others can argue that TS-251 offered better transcoding and Plex support among others, I say I don't care about that because I don't use Plex.

They say never say never but I know that I will never get Qnap again - don't care if Qnaps have better hardware. What good is hardware with lacking software?

**** Update 21st January 2015 ******
I have raised the mark to 4 stars, from 3.
I am doing this because software has been polished over the last couple of months, there were 2 or 3 bigger updates that removed many bugs/issues.

My usage scenario for it has not changed, I am still using it mainly for data archiving, dlna/multimedia presentation to computers on local and remote networks, downloading files, sharing files to others, etc.

I do appreciate the extra power and memory it has (upgraded to 4 gb) and I may use extra features is has in the future, like the vm or data encoding, which I currently don't use.
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