StarTech.com Expansion Slot Rear Exhaust Cooling Fan with LP4 Connector. Type: Cooler, Rotational speed (max): 2200 RPM, Noise level (high speed): 32 dB, Maximum airflow: 6.9 cfm. Voltage: 12 V. Width: 90 mm, Depth: 110 mm, Height: 20 mm. Product colour: Black