Thermaltake 120mm Ball Bearing Smart Case Fan with Fan Speed Control Knob AF0022

Fan Dimension 120 x 120 x 25 mm Fan Speed 800 - 1,800 RPM Fan Speed Control Fan Speed Control Knob LED Color - Bearing Type 1 Ball & 1 Sleeve Noise Level 37 dBA Max. Air Flow 77.85 CFM Max. Air Pressure 1.80 mmH2O Power Connector 4-Pin Molex Rated Voltage 12 V Started Voltage =<7V Rated Current 0.25 A Static Pressure - Operation Temperature - Power Input 3.0 W MTBF 40,000 Hours @ 40 degree Celsius Weight 152 g Silent variable resistor fan : Adjust fan speed manually