Silent Wings Pro 4 , 140 mm , Type Fan , Suitable location Computer case , Rotational speed (max) 2400 RPM , Noise level (high speed) 36.8 dB , Maximum airflow 97.41 cfm , Airflow 165.5 m³/h , Pulse-width modulation (PWM) support Yes , Bearing type Fluid Dynamic Bearing (FDB) , Colour Black , Fan connector 4-pin , Power consumption (typical) 6 W , Rated current 0.5 A , Weight 258 g