Computer Cooling FanProduct Details1.Bearing Type: Sleeve Bearing; Voltage: DC 12V2.Dimension: 92*92*25mm (3.62*3.62*0.98 inches); Lead Wire Length: 220mm (red+, black-)3.92mm DC Brushless Fan, comes with 2 bare wire4.Input (Watt): 7.2W; Speed (R.P.M.): 3,800 R.P.M. (+ / - 10%)5.Air Flow (CFM): 56.44CFM; Fan Noise Level (dB-A): 36.5 dB-A; Fan Life Expectancy: 30,000 hours.