The Thermaltake A2414/SL1 dual PCI slot exhaust fan is a high efficiency low noise fan that pulls air from both sides of it's housing for maximum cooling power. Rated at 10.5CFM and 1650RPM this dynamo's performance leaves its competitors in the dust. Bearing Type: Enter RPM: 1650 RPM Air Flow: 10.5 CFM Noise Level: 16 dBA Power Connector: 4 Pin Color: Transparent Compatibility: Dual PCI Slot Dimensions: 180.0 x 120.0 x 41.5mm