Silence is more than obvious since the rates can be as settled between 800 and 650 rpm with a digital drive or manual. No vibrations felt through the structure with silicone corners and also thanks to the silicone feet provided. These fours helped me lay the flat bottom of the Cooler Master ATCS 840 case where there is a slot for a fan with a filter below. So without screwing it just laid, he helped improve my cooling system is semi liabilities. Simpler than that is not possible. Go just to balance the praise that are not exhaustive I would say I do not like the colors and the price is too high.
