The DeepCool AK400 is a highly compatible CPU cooler featuring a classic four heat pipe tower layout with a unique matrix fin design and a high-performance FDB fan that delivers excellent heat dissipation and extremely low noise levels. Technical Spec Product Dimensions 127×97×155 mm Heatsink Dimensions 120×45×152 mm Net Weight 661 g Heatpipe Ø6 mm×4 pcs Fan Dimensions 120×120×25 mm Fan Speed 500~1850 RPM±10% Fan Airflow 66.47 CFM Fan Air Pressure 2.04 mmAq Fan Noise ≤29 dB(A) Fan Connector 4-pin PWM Bearing Type Fluid Dynamic Bearing Fan Rated Voltage 12 VDC Fan Rated Current 0.13 A Fan Power Consumption 1.56 W