DEEPCOOL GF 140 Black FDB Bearing PWM Fan Detachable, Rubber Coating De-vibration Deep Silent Type: Case Fan Bearing Type: Fluid Dynamic RPM: 700±200~1200±10%RPM Air Flow: 71.8CFM Noise Level: 17.6~26.7dB(A) Color: Black Compatibility: Case Dimensions: ?140X26mm (PWM function)