- Also check our best rated NAS Drive reviews
QNAP TS-251 2 Bay Desktop NAS Enclosure
We don't know when or if this item will be back in stock.
- Enter your model number above to make sure this fits.
- 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
There is a newer model of this item:
Customers Who Bought This Item Also Bought
Qnap Turbo NAS Server TS-251 2 HD NAS RAID Tower / Celeron 2.41GHz Dual-Core / 1GB / 2GbE, HDMI / Storage System
1 x TS-251
Screws & Manual
From the Manufacturer
QNAP TS-251 High-performance NAS
The TS-251 provides a high performance & high capacity storage solution for SOHO & home, workgroup, and SMB users. Powered by the advanced QTS operating system, the TS-251 performs as an easy-to-use yet powerful NAS for data backup, file synchronisation, remote access, home entertainment, and is ideal for users to build a personal cloud to access their data easily.
Powered by a new 22nm 64-bit dual-core Intel Celeron 2.41GHz processor with 1GB energy-efficient DDR3L RAM (upgradable up to 8GB), coupled with the support of dual LAN ports and HDMI connectivity, the TS-251 is a powerful home NAS with supreme value and great performance to deliver up to 220MB/s read & write speeds. The TS-251 can also automatically increase the processor's clock rate from 2.41GHz to 2.58GHz when needed for CPU-intensive tasks. The TS-251’s fast encryption and decryption performance provides transfer speeds of up to 68MB/s with AES-256 bit volume encryption, boosting system performance & security while ensuring the safety of sensitive personal data stored in the TS-251. When installed with the latest dual-band 2.4GHz/5GHz 802.11ac Wi-Fi network card, the TS-251 can offer remarkably high speeds for transferring large amount of files and streaming bandwidth-consuming multimedia.
- Transcode Full HD videos on-the-fly or offline
- Play 1080p videos with 7.1 channel surround sound pass-through via HDMI output
- Create a personal cloud and stream your multimedia library via DLNA, AirPlay, and Plex
- Centralise your file storage, sharing and backup
- Run a virtual machine and extend the functionality of the NAS with an integrated virtualisation solution
- Expand the total raw storage capacity with the economical QNAP expansion enclosures (UX-500P & UX-800P)
QTS - Simple and efficient
Thanks to QTS intuitive user interface, system operations of the QNAP NAS are smooth and handy. Its intelligent desktop allows you to find desired functions quickly, create desktop shortcuts or group shortcuts, monitor important system information on a real-time basis, and open multiple application windows to run multiple tasks concurrently, bringing greater operating efficiency.
Stream media via DLNA, AirPlay, and Plex
You can use DLNA-compatible devices such as HDTVs, Smart TVs, Sony PS3, Microsoft Xbox 360 and Hi-Fi systems to enjoy HD quality videos and high-resolution audio content such as DSD (Direct Stream Digital) audio format stored on the TS-251. You can also use the Qfile app on an iOS device to browse videos and photos stored on the TS-251 and play on the TV via Apple TV. By installing the QAirplay app, available on the QTS App Center, you can stream your media content directly on a TV via Apple TV. The media contents are streaming on Apple TV, bypassing your mobile device, thus saving the energy of your mobile device. The TS-251's support for Plex Media Server organises all of your media with rich information and transforms the TS-251 into a powerful & easy to use streaming machine with DLNA, Roku, Amazon Fire TV, and Google TV support.
Enjoy Full HD videos via HDMI
QNAP HD Station integrates the powerful Kodi media player and web browser. With HDMI 1.4a connectivity, you can connect the TS-251 to a HDTV to enjoy your rich multimedia content on the big screen. The splendid user interface and support for 7.1 channel surround sound audio passthrough* bring smooth playback of Full HD videos providing a quality home theater experience**. You can also turn your mobile devices into remote controls by installing the Qremote app or use QNAP RM-IR002 remote control and MCE remote controls via the built-in IR receiver of the TS-251 for convenient & easy control of the HD Station.
Access, use, sync and enjoy with your tablets and smartphone
The TS-251 is your private cloud storage that virtually enlarges the capacity of your smart mobile devices. Qfile allows you to access, upload, download, manage, and share stored files easily as if you are carrying tons of files in your pocket. If Qfile is installed on an iOS device, users can also browse videos & photos stored on the TS-251 and play on a TV via Apple TV. Qmanager lets you monitor & manage the TS-251 remotely and efficiently without turning on a PC, while Qmusic allows you to listen to your music collections on the TS-251 anytime and anywhere, and download to enjoy offline.
Use your QNAP as a PC!
QNAP’s exclusive QvPC Technology consolidates a number of high-end technologies including VM integration, multimedia transcoding, HDMI output, cloud integration and NAS connection technologies, allowing users to operate the TS-251 as a PC when they plug in a keyboard, mouse and monitor. With QvPC Technology, the TS-251 is transformed into a cost-effective device with PC functionalities for users to directly access stored data, run multiple applications using Windows/Linux/UNIX/Android-based VMs, surf the web on Google Chrome, enjoy Full HD videos with up to 7.1 channel audio with Kodi, monitor Surveillance Station in real time with local display, and much more.
Note: The Virtualisation Station requires at least 2GB RAM to operate. Multiple VMs can be installed, but only 1 VM can be run at a time. TS-251 with 4GB RAM (Ordering part no. TS-251-4G) is available for ordering and recommended.
|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)|
|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||✓||✓|
What do customers buy after viewing this item?
Top Customer Reviews
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.
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
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.Read more ›
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.
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.Read more ›
Most Recent Customer Reviews
Excellent NAS, we expanded the ram to 8 mg and works perfect as very happy Plex server among other things.Published 2 months ago by Miguel_Glez
Quality product from qnap. I was also surprised getting 2 cctv camera licences with itPublished 6 months ago by Sirratty
Upgraded to the QNAP TS-251 from the terrible WD MyCloud.
I fitted the 8GB RAM module to the TS-251 before booting it up for the first time, and used the 4TB WD Red disk... Read more
Absolutely awesome. Does everything I want it to do and more. With this little beauty I can run a movie on the Plex media player straight from the NAS (no computer needed) whilst... Read morePublished 6 months ago by Aido C
Check your hard drive is compatible. Only a handful of hard drives work with this machine. You can't just go adding any hard drive internally or externally. Read morePublished 7 months ago by Pablo
I spent a long time deciding on whether to get one of these, I only wish i`d bought one years ago. It has stream brilliantly to my samsung tv and chromecast without a hiccup. Read morePublished 7 months ago by pr1970