AK-FN072 Akasa 120mm Piranha high performance PWM air ripper blade Case Fan New Type: Case Fan Bearing Type: HDB (Hydro Dynamic Bearing) RPM: 600-1900 RPM Air Flow: 79.13 CFM Noise Level: 6.4-27.2 dB(A) Power Connector: 4 Pin Dimensions: 120 X 120 X 25mm