Low Power Consumption, This low-profile design ensures the highest degree of compatibility. Stamping FIN, the heat pipe is stamped between the fins, increased contact area between the fins and the heat pipe can enhance conduction efficiency greatly. Cooper Base Heat Pipes Improve Cooling Efficiency The contact surface area of heatpipes to the base is increased,this further improves conductance and cooling capability. Excellent Performance LED Fan Ultra wide PWM RPM range,increased cooling performance Universal Socket Compatibility Multiple socket to supportProduct Dimensions 125x145x95 mm Heatsink Dimensions 125x145x71 mm Heatsink Weight 518 g Heat Pipe O6 mm?4 pcs Fan Dimensions 20x120x25 mm Fan Rated Voltage DC 12V Fan Rated Current 0.15~0.3 A Fan Speed 800-2000 R.P.M. Fan Airflow ?18.3~?45.2 CFM Fan Air Pressure DC 12V Fan Noise 24.1~35.5 dB(A) Fan Connector 4-pin(PWM) Bearing Type Rifile Fan MTTF 40,000hours