Cpu cooler Chipset : p4/p5/k7/k8 Specifications: Size:140(l)x140(w)x65(h)mm (in straight line:156x156x65mm) Weight: 733g Fan & bearing : 2 balls/120mm !! Rated voltage: 12v Rated current: 0.35amp Air flow: 53.5x78.5cfm Speed: 1200x2200rpm10% Noise: 15x25db10% with speed controller