the packaging is superb. The kit includes a power adapter Molex 5V / 7V / 12V like that you choose the speed of the fan and thus the noise. there are also two sets of four adapters for fixing the fan on its support according to use. One of the two kits is rubber and therefore dampens vibrations. Mounted under a Case Silverstone Fortress Mini replacing fan Silvertsone original, my PC has become INAUDIBLE !!! Frankly great product !!