Rosewill 220mm Computer Case Fan (Case Cooling Fan) - Transparent Frame & 4 Blue LEDs, Sleeve Bearing, Super Quiet Fan with LP4 4-Pin Connector; RCA-220-BL Type: Case Fan Bearing Type: Sleeve RPM: 600 RPM Air Flow: 110 CFM Noise Level: 21 dBA Power Connector: 4 Pin Color: Transparent Compatibility: Case