StarTech.com 80x25mm Dual Ball Bearing Computer Case Fan w/ TX3 Connector. Type: Fan, Fan diameter: 8 cm, Rotational speed (max): 3000 RPM, Noise level (high speed): 34 dB, Maximum airflow: 37.3 cfm, Bearing type: Ball bearing. Voltage: 12 V. Width: 80 mm, Depth: 80 mm, Height: 25 mm. Product colour: Black