Compatibility: Intel CoreTM 2 Extreme (LGA775), Intel CoreTM 2 Duo (LGA775), Intel Pentium D (LGA775), Intel Pentium 4 (LGA775), Intel Celeron D (LGA775) 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: 525g