CPU Socket Intel Socket: LGA 2011/1366/1156/1155/775 AMD Socket: FM1/AM3+/AM3/AM2+/AM2 Dimension 145 x 97 x 161.6 mm / 5.7 x 3.8 x 6.4 inch Heat Sink Dimensions 134 x 85 x 161.6 mm /5.3 x 3.4 x 6.4 inch Heat Sink Material Copper Base / 1 Vapor Chamber/ 4 Heatpipes / Aluminum Fins Heat Sink Weight 640g / 1.4 lbs Heat Pipes Dimensions ø6mm Fan Dimension 120 x 120 x 25 mm / 4.7 x 4.7 x 1 inch Fan Speed 600 ~ 2,000 RPM (PWM) ± 10% Fan Airflow 24.9 ~ 82.9 CFM ± 10% Fan Air Pressure 0.3 ~ 2.7 mm H2O ± 10% Fan Life Expectancy 40,000 hrs Fan Noise Level 9 ~ 36 dBA Bearing Type Rifle Bearing Connector 4-pin Fan Weight 122g / 0.26 lbs Weight 762g / 1.7 lbs