" Driving air through the heatsinks' aluminum fins is a 92x25mm PWM fan which is held in place with rubber fan mounts. This is not a method we're not particularly fond of, wire fan clips stand the test of time. The fan spins at 2400-1000RPM and draws power from a standard 4-pin PWM connection. At full speed it pushes upwards of 53CFM air through the 55mm deep fin stack according to the manufacturer specs. Raijintek's Aidos heatsink installs onto Intel socket LGA2011/1366/1150/1155/1156/775 processors and the complete line up of AMD CPUs."