Compatibility: AMD Athlon 64 X2 (Socket 939, AM2), AMD Athlon 64 FX (Socket 939, AM2), AMD Athlon 64 (Socket 754, 939, AM2), AMD Sempron (Socket 754, AM2) Dimension: 117(L) x 102(W) x 141(H)mm Heatsink Material: Copper Base / Aluminum Fin Heatpipe: 6mm x 4 Fan Dimension: 92(L) x 92(W) x 32(H)mm Rated Voltage: 12 V Fan Speed: 300~2500RPM(PWM) Max. Air Flow: 35.14 CFM Noise Level: 16 dBA Life Expectation: 50,000 Hours Connector: 4-Pin PWM function Weight: 505g