Kingwin 120mm CF-012LB Silent Fan, For Computer Cases, CPU Coolers, Long Life Bearing, Quiet Efficient Cooling, and Provide Excellent Ventilation for PC Cases-[Black] Noise Level:19 dB(A) Special high profile fan blades for maximum air flow (40 CFM) 120 x 120 x 25 mm long life bearing case fan Design for up to 100,000 hrs life expectancy 3 Pin/4 Pin Connector