Silent Wings 4 | 140 mm | Type Fan | Suitable location Computer case | Rotational speed (max) 1900 RPM | Noise level (high speed) 29.3 dB | Maximum airflow 78.4 cfm | Airflow 133.2 m³/h | Pulse-width modulation (PWM) support Yes | Bearing type Fluid Dynamic Bearing (FDB) | Colour Black | Fan connector 4-pin | Power consumption (typical) 4.8 W | Rated current 0.4 A | Weight 220 g