Silent Wings 4 , 140 mm , Type Fan , Suitable location Computer case , Rotational speed (max) 1100 RPM , Noise level (high speed) 13.6 dB , Maximum airflow 51.3 cfm , Airflow 87.16 m³/h , Pulse-width modulation (PWM) support Yes , Bearing type Fluid Dynamic Bearing (FDB) , Colour Black , Fan connector 4-pin , Power consumption (typical) 3.6 W , Rated current 0.3 A , Weight 220 g