Fan Dimension: 120mm x 120mm x 27mm Rated Voltage: DC 12V LED Voltage 5V Fan Speed: 9001800 RPM Max. Air Pressure: 1.46 mm-H2O Max. Air Flow: 57.97 CFM Acoustical Noise Min-Max.: 19.4 29 dBA Insulation Type: Class A Locked Current: 0.2 A Bearing Type: Fluid Dynamic Bearing Operation Voltage: 10.8V—13.2V Start-up Voltage: ≦6V Duty Cycle 100% Input Current: Max. 0.45A Input Power: Max. 5.5W