Antec PRO 80MM DBB 80mm PRO 80mm Double Ball Bearing Case Fan Type: Case Fan Bearing Type: Double Ball Bearing RPM: 2600 RPM Air Flow: 34 CFM Noise Level: 30 dBA Power Connector: 3-pin motherboard 4-pin power supply Compatibility: Case Dimensions: 3.15 x 3.15 x 1