Cooler Master Hyper 622 Halo Black. Type: Air cooler, Fan diameter: 12 cm, Rotational speed (min): 650 RPM, Rotational speed (max): 2050 RPM, Noise level (high speed): 27 dB, Maximum airflow: 51.88 cfm, Maximum air pressure: 2.89 mmH2O, Bearing type: Rifle bearing. Width: 137 mm, Depth: 125 mm, Height: 157 mm. Product colour: Black