ARCTIC F8 PWM PST CO - 80 mm PWM with PST Case Fan for Continuous Operation. Type: Fan, Fan diameter: 8 cm, Rotational speed (min): 300 RPM, Rotational speed (max): 2000 RPM, Noise level: 0.3 sone, Maximum airflow: 31 cfm, Airflow: 52.7 m³/h, Minimum air pressure: 1 mmH2O, Bearing type: Dual ball bearing. Voltage: 12 V. Width: 80 mm, Depth: 80 mm, Height: 25 mm. Product colour: Black