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Synology Diskstation DS411j Review

We take the issue of noise very seriously at KitGuru and this is why we have built a special home brew system as a reference point when we test noise levels of various components.

Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on components we are testing. It also brings us slightly closer to industry standards, such as DIN 45635.

As this can be a little confusing for people, here are various dBa ratings in with real world situations to help describe the various levels.

KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum

Noise was measured from half a meter away.

Synology rate this unit at 21.7dBa however we recorded 28.8 dBa from the dual 80mm fan configuration. This is still a very impressive result however and it would not be audible under the majority of ‘real world' situations.

We measured power from the socket with 2 x 1TB Samsung HD103SI hard drives installed.

When idle the system uses only 16 watts of power and when active, around 32 watts. Bear in mind with 4 drives this would be higher, probably closer to 45watts.

The two 80mm fans keep the drives well in check, with four installed we would expect the temperatures to rise by 1-2 degrees celcius.

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8 comments

  1. That is one hell of a price. very good indeed.

  2. Well this is quite spectacular. quad drive capacity for under 300 quid? never thought id see this. normally reserved for the high end market. speeds aren’t incredible, but I wouldn’t expect that for this cost.

  3. Unusual design idea with the rear dropping, but the thumbscrews is quite inventive. not really very secure mind you, but for home or small office, its ideal.

  4. I will be picking this up shortly, loads of future proofing with this unit.

  5. They seem to be bringing out some new products for the mainstream which is good to see. their high end stuff is lustful, but its way over the odds for most people, so this makes sense to me. very good pricing.

  6. “We averaged around 36 mb/s”

    No you didn’t, mb = millibit, so 36mb/s would be a million times slower than the actual result obtained.

    You averaged 36 MB/s. I expect Mb/MB/mb mixups in the general press but not in-depth tech reviews.

  7. Apply your inner capslock. Makes you look less of an idiot.

  8. Good review, very glad to see the system board photo confirming that the ram is un-upgradeable.

    It is an OK unit, but not much room to grow by the limited and un-upgradeable ram