be quiet! Pure Wings 3 140mm | PWM high-speed Triple Pack. Type: Fan, Fan diameter: 14 cm, Rotational speed (max): 1800 RPM, Airflow: 122.6 m³/h, Maximum air pressure: 2.44 mmH2O, Bearing type: Rifle bearing. Voltage: 5 - 13.2 V. Height: 140 mm. Product colour: Black