Note however that the minimum speed is quite high 800. A reasonable speeds, it is as quiet as a shadow BeQuiet wing: the reference!
In 1800, he hums a little audible, but the noise is regular. Nothing more natural for such speeds. In return: what breath!
Everything is managed directly by the PWM (CPUFAN CM)
Really very happy with this purchase for my 212 Evo whose fan tended to produce unpleasant sounds at certain frequencies. So, I have taken two more to ventilate the housing PWM again (SYSFAN1 and 2 of the CM). For about 11, it is certainly excellent deal.
Value pretty amazing final price.
Still, I would love to come down a little lower in speed history of a little decrease in consumption at full load is 4W by swif120P