QNAP TS-451 Turbo NAS Server Review


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QNAP TS-451 NAS Hardware Specifications

The TS-451 has some impressive hardware specs:

CPU Intel® Celeron (Bay Trail-D) 2.41GHz Dual-Core Processor
DRAM 1GB (or 4GB) SO-DIMM RAM Retail Options, 8GB Max.
Flash Memory 512MB DOM
Hard Disk Drive 4 x 3.5” or 2.5” SATA 6Gb/s, SATA 3Gb/s hard drive or SSD
Hard Disk Tray 4 x Hot-swappable tray without key lock
LAN Port 2 x Gigabit RJ-45 Ethernet port
LED Indicators Status, LAN, USB, HDD 1 – 4
USB 2 x USB 3.0 port (front: 1, rear:1) 2 x USB 2.0 port (front: 0, rear:2)  Support USB printer, pen drive, USB hub (front), and USB UPS etc.
IR Built-in Infrared Receiver (IR) for MCE remote control
Buttons Power, Reset, USB One Touch Backup
Alarm Buzzer System warning
LCD Panel N/A
Secure Design K-lock security slot for theft prevention
Fan 1 x quiet cooling fan (120 mm, 12V DC)
PCI-E Slot N/A
Form Factor Tower
Dimensions 177 (H) x 180 (W) x 235 (D) mm 6.97 (H) x7.09 (W) x 9.25 (D) inch
Weight Net weight:3 kg (6.6 lbs) Gross weight: 4.3 kg (9.5 lbs)
Power Consumption (W) Sleep mode: 15.9W In Operation: 31.1W Power-off (in WOL mode): 0.55W (with 4 x 500GB HDD installed)
Temperature 0-40˚C
Humidity 5~95% RH non-condensing
Power Supply Input: 100-240V AC, 50/60Hz, Output: 90W

I mentioned earlier that QNAP has a very extensive set of features built into the operating software, but maybe I should have warned you. The S/W feature list is HUGE. Honestly, a lot of us spend the majority of our time analyzing hardware (yeah, I’m guilty…), but when you see all the capability that a modern NAS server can provide, it’s pretty amazing. Let’s take a long, detailed look, shall we?


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  1. Piotr Z.

    If I’ve read the screenshot of ATTO correcty, you’ve just measured your C drive on SSD 🙂 1Gbit interface is exactly that – 1Gbit = theoretical 125MB/s. With the overhead it will max out on 110-180MB/s which you got in other softwares. I would suggest fixing that part of otherwise great review 😀

  2. Bruce

    Well, that might explain the very strange results I got….. Thank you so much for pointing that out. I will redo that test and post the true results.

  3. jamief

    QNAP suggest 3 possible usb tv tuners for use with this model….namely UPMOST DVB192A HD; Hauppauge Win TV Nova_T Stick (Device: 70019;HW rev DiF4) or Asus My Cinema U3100 Mini. I mistakenly bought a QNAP USB tv Stick when I originally acquired the above unit, thinking that it would naturally be compatible. Some of the above sticks are difficult to either isolate or acquire in UK and I was wondering if anyone else with similar NAS has had any luck with any other usb stick.

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