Noctua NF-A9X14 PWM. Type: Fan, Fan diameter: 9.2 cm, Rotational speed (min): 1700 RPM, Rotational speed (max): 2200 RPM, Airflow: 50.5 m³/h, Minimum air pressure: 0.92 mmH2O, Maximum air pressure: 1.64 mmH2O. Voltage: 12 V. Product color: Brown