Features: 6 x diam6 heatpipe structure with 3 set of stylish aluminum fin design to provide the ultimate efficient heat conductivity and dissipation Using 12cm huge fan not only to dissipate the heat from CPU, also reduce the temperature from other components, like the memory and northbridge parts With high and low fan speed control switch and special aseismatic structure to decrease the resonant frequency of the fan The specular effected of SUS 430 stainless case and the transparent blue color fan with LED light to perform the workmanship and aesthetics quality All in one design to application for Intel P4 LGA775 and AMD K8 series Easy to install for all users Specifications: Overall dimension: 155 x 120 x 140mm DC fan size: 120 x 120 x 25mm Heat sink material: copper base, aluminum fan, heat pipe Bearing type: ever lubricate bearing type (long life bearing) Speed: Low: 1,200 ±10% rpm High: 1,800 ±10% rpm Noise level: Low: <27.3dBa High: <30dBa Rated voltage: 12V DC Weight: 873g