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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.
We recorded noise levels around 29 dBa from the single fan. A very good result for the product and this verifies that it will not be audible under the majority of real world environments.
We measured power from the socket with 2 x 1TB Samsung HD103SI hard drives installed.
When idle, the DS211 is consuming around 11 watts of power and when active this increases to 32 watts. A similar figure to the DS411j we recently tested when populated with two drives.
The single fan does an admirable job maintaining drive temperatures.
What a NAS system for the price ! wow this is going to sell well. those performance figures are high end systems of last year.
holy crap, if this is their new standard range for 2011, I wonder what the performance range will be like !
preordered this on dabs. thanks for the review. just want I need.
Wow these kind of performance figures are normally with products in the 500 price bracket. thats amazing. wonder if they will make a quad version at this speed for a bit more.
I love this company, they are breaking the rules. This will piss off other comapnies like QNAP and buffalo. you just dont get performance like this at the price they are offering. wicked. 10/10
Glad I waited, pre ordered this also.
Fascinating how they sell this for so low a price. the controllers at those speeds are generally expensive.
Really good, shame our local stores dont stock em, I like to see them in the flesh first.
Damn I just bought a buffalo nas and it sucks 🙁 wonder if I can take it back. its so damn slow.
wow, im stunned how good the performance of this is. I need a better network for it however. id be lucky to hit 20mb/s
My boss ordered 4 of these for the offices. very impressive product. I see the chipset is improved significantly. Fantastic pricing.
Please use ‘b’ for bits, and ‘B’ for bytes. Or better spell them out. That would make your charts and narratives much easier to follow. Thanks.
This seems like a good upgrade from their previous product, and prices are staying stable for the same grade of product. Could do with an esata port but thats really a quibble. How well do they cope with 4k format disks tho? they come in either 2tb 2.5tb or 3tb. Man one of these fitted out with a 2.5tb disk and a 4tb disk (thats me sweet for next 2.75years of projected Tv recordings) LOL
Synology have told me that they don’t yet support drives bigger than 2tb. But it is something that will be supported in the future.
No time frame on it yet, sorry.
Great review and very grateful that you tested the sound levels that the unit makes. It was one of my concerns with this product but the results of your dba testing have now sold me the unit. As I said great review and keep up the good work 🙂