Full Details from Amazon.com : http://www.amazon.com/gp/product/B008ZVZ5WE?tag=onigi-20
Zalman Ultra Quiet CPU Cooler for Intel LGA2011/1366/1156/1155/775 and AMD Socket FM1/AM3 /AM3/AM2 /AM2
Material Pure Copper and Aluminum
Dissipation Area 10466 cm2
Fan 140mm Ultra Quiet Fan
Speed 950 1350 rpm - 10
Noise Level 17 21 dBA - 10