Fan Dimension: 120 x 120 x 25 mm Fan Speed: 950 RPM Bearing Type: Long life bearing Noise Level: 19 dB(A) Air Flow: 40 CFM Rated Voltage: 12 VDC Operational Voltage: 10.8 ' 13.3 V Weight: 0.25 lbs/ 113 g (unit) Model: CF-012LB 120 x 120 x 25 mm long life bearing case fan Special high profile fan blades for maximum air flow Provide excellent ventilation for your PC cases Design for up to 100,000 hrs life expectancy High performance High reliability 3 Pin/4 Pin Connector