Enermax Case Fan Cooling UC-MA12 Speed: 1500 RPM Air Flow: 69.15 CFM / 117.49 m3/h (Max) Noise Level: 18 dBA Air Pressure: 1.4 mm H2O (Max) Bearing Type: Twister Bearing Voltage: 12 V Blades: 9x Batwing Blades