Is the Silent NAS worth the extra money compared to the TS-251+?
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VALUE A good solid NAS that lives up to everything it promises. Low Power consumption and one of the quietest NAS units I have ever used – and this along with high end performance and features. FEATURES Has all the features you would expect from a High end QNAP NAS, as well as including all cables and even a remote control for those looking for a high end NAS entertainment system or Plex Media NAS. PERFORMANCE Once again, the unit provides excellent read and write transmission speeds with its quad core intel CPU and DDR3 memory. For it’s target audience that demand high end NAS performance, but with little or no noise and low power consumption, this NAS wins the race! DESIGN Very sleek NAS design and it does live up to the name it is a VERY silent NAS! Ples the large metal exterior acts as an excellent heat sink. The unit will slide comfortably into most small office and home entertainment setups very subtly. |
VALUE Lack of space for a RAM upgrade and unconventional drive installation may put some people off. FEATURES The unit does get hot when in heavy use – at least 4-5 active users on the device and cpu use up in the high 80’s can may the top panel seem quick warm to the touch. This does not seem to hamper performance but worth noting. PERFORMANCE Because of the lack of operational fans and scale, the performance and max limits on many of the apps are lower than the traditional desktop version of this device, the QNAP TS-251+-2G. a notable example is that this device can only run a single VM (virtual Machine) from the NAS software as appose to the several you can run on the TS-251+-8G or the QNAP TS-253A-4G. DESIGN If noise isn’t as big a deal to you as Hardware and you plan on being at least 2 metres away from your NAS at all times (or it is in a cabinet etc), then you should perhaps skip this NAS and buy the TS-251+ or buy the TS-253A today |
The QNAP TS-251+ NAS Advantages and Disadvantages
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VALUE Good price for those looking for a Solid Start to Network Attached Storage with an option to expand later Good mix of enterprise and Home user functionality. With the exception of 4K transcoding and AES-NI level encryption, this NAS can do everything! Of course if you want things done to an enterprise level, then you should go for some bigger units, but you will be hard pushed to find a better 2 bay NAS for Plex Media Server NAS use, Virtual Machines and All things NAS – particularly at just over £200 to buy this NAS DESIGN Second only to the QNAP TS-253A, the QNAP TS-251+ is one of the best 2-bay NAS units from QNAP in the market this 2016. The design is the result of years of chassis design in previous unit and is very easy on the eye. A good combination of plastic and metal throughout where it counts. |
VALUE Suited to all operating systems but those in the Mac community might want to cast a glance at the Synology DS716+ first. FEATURES Just the lack of AES-NI encryption to speed up encrypted data transmissions is missing. PERFORMANCE The only remark I can make about performance is that it is only slightly (and I really mean slightly…like teeny tiny) less user-friendly than the Synology DS716+ DESIGN Only available in Black/Grey – So you Mac fans of everything in brushed silver or white will be disappointed |
How to the QNAP TS-251+ and QNAP HS-251+ NAS Compare?
QNAP TS-251+ NAS |
QNAP HS-251+ NAS |
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OS |
Embedded Linux |
Embedded Linux |
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CPU |
Quad-Core Intel® Celeron® 2.0GHz (up to 2.42GHz) |
Quad-core Intel® Celeron® 2.0GHz (Up to 2.42GHz) |
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Memory (RAM) |
2GB / 8GB SO-DIMM DDR3L |
2GB DDR3L |
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Flash |
512MB (DOM) |
512MB (DOM) |
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Number of RAM Slots |
2 (Max 8 GB) |
– |
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Max. number of HDDs/SSDs |
2x 2.5″ or 3.5″ SATA 6Gb/s, 3Gb/s |
2x 2.5″ or 3.5″ SATA 3Gb/s |
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Hot-Swappable HDD Tray |
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Expansion Enclosure Support |
1 (UX-800P, UX-500P) |
1 (UX-800P, UX-500P) |
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Gigabit LAN Ports |
2 |
2 |
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Jumbo Frame (GbE) |
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USB 2.0 |
2 |
2 |
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USB 3.0 |
2 |
2 |
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IR Sensor (Infrared Receiver) |
Yes (RM-IR002 & MCE) |
Yes (RM-IR002 & MCE) |
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Free Remote Control |
(RM-IR002) |
(RM-IR002) |
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HDMI |
1 (1080p) |
1 (1080p) |
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LED Indicators |
Power/Status, LAN, USB, HDD1-2 |
Status, LAN |
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Buttons |
Power, Reset, USB Auto Copy |
Power, Reset |
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Form Factor |
Tower |
Set-Top design |
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Dimensions (HxWxD) mm |
169 x 102 x 219 mm |
41.3 x 302 x 220 |
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Weight (Net/ Gross) |
1.28 kg (2.82 lbs) / 2.32 kg (5.11 lbs) |
1.56kg/ 2.62kg |
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Temperature |
0 – 40 °C |
0 – 40 °C |
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Humidity |
5 – 95% R.H |
5 – 95% R.H |
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Power Supply Specification |
External Power Adapter, 60W, 100-240V |
External Power Adapter, 60W, 100-240V |
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Power Consumption: HDD Sleep Mode (W) |
10.56 |
7.1 |
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Power Consumption: Operating Mode, Typical (W) |
18.09 |
15.8 |
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Power Consumption: System Sleep |
0.574 |
0.6 |
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Noise Level dB(A) |
15.4 |
6.5 |
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Seq. Write, 64KB (MB/s) |
225 (2 x GbE) |
224 |
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Seq. Read, 64KB (MB/s) |
223 (2 x GbE) |
224 |
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Seq. Write with AES 256-bit Volume Encryption (MB/s) |
178 (2 x GbE) |
184 |
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Seq. Read with AES 256-bit Volume Encryption (MB/s) |
205 (2 x GbE) |
191 |
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File System: Internal Hard Drive |
EXT4 |
EXT4 |
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File System: External Hard Drive |
EXT3, EXT4, NTFS, FAT32, HFS+ |
EXT3, EXT4, NTFS, FAT32, HFS+ |
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Port Trunking / Link Aggregation |
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Network Service Discovery (UPnP & Bonjour) |
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Virtual LAN (VLAN) |
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Wireless LAN via USB Wi-Fi Adapter |
802.11ac/a/n |
802.11ac/a/n |
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Surveillance Station |
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Max Number of Cameras |
Default: 2, Max.: 40 (optional license purchase) |
Default: 2, Max.: 40 (optional license purchase) |
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Mobile Surveillance App for iOS & Android |
Vmobile |
Vmobile |
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Surveillance Local Display |
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Max USB Webcam for liveview or snapshot (QUSBCam App) |
2 (up to 1280×960, 5FPS) |
2 (up to 1280×960, 5FPS) |
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Virtualization Station |
Yes (RAM of NAS >= 2 GB) |
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Container Station |
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Qsirch (RAM of NAS >= 2GB) |
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Linux Station (RAM of NAS >= 4GB) |
– |
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Syslog Server & Client |
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Antivirus |
Yes (Optional McAfee Antivirus available) |
Yes (Optional McAfee Antivirus available) |
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Mail Server |
Xmail, Xeams (QPKG) |
Xmail (QPKG) |
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VPN Server (PPTP + OpenVPN + L2TP) |
Yes (Max clients: 15 + 15 + 15) |
Yes (Max clients: 15 + 15 + 15) |
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myQNAPcloud Remote Access and File Sharing |
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3rd Party Cloud Storage |
Amazon S3/Glacier, ElephantDrive, Google Drive, Microsoft Azure |
Amazon S3/Glacier, ElephantDrive, Google Drive, Microsoft Azure |
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Mobile Apps for iOS & Android |
Qfile, Qmanager, Qphoto, Qmusic, Qnotes, VMobile, Vcam, Qremote |
Qfile, Qmanager, Qphoto, Qmusic, Qnotes, VMobile, Vcam, Qremote |
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Max. Number of Users |
4096 |
4096 |
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Max. Number of User Groups |
512 |
512 |
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Max. Number of Share Folders |
512 |
512 |
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Max. Number of Concurrent Connections |
800 |
700 |
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Language |
English, German, French, Italian, Spanish, Polish, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Korean, Dutch, Czech, Traditional Chinese, Simplified Chinese, Turkish, Hungarian, Romanian, Thai, Portuguese/Brazil, Greek |
English, German, French, Italian, Spanish, Polish, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Korean, Dutch, Czech, Traditional Chinese, Simplified Chinese, Turkish, Hungarian, Romanian, Thai, Portuguese/Brazil, Greek |
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