Type: Fan & Heatsinks RPM: At Duty Cycle 0~20%: 1000 RPM At Duty Cycle 50%: 2500 RPM At Duty Cycle 100%: 5000 RPM Air Flow: At Duty Cycle 0~20%: 5.355 CFM At Duty Cycle 50%: 7.654CFM At Duty Cycle 100%: 14.719 CFM Noise Level: At Duty Cycle 0~20%: 20.71 dBA At Duty Cycle 50%: 37.5 dBA At Duty Cycle 100%: 51.7 dBA Power Connector: 4 Pin (PWM) Heatsink Material: Copper Compatibility: Inter: Socket 1156 Fan Dimensions: 80 x 80 x 15 mm