12CM BLACK FAN Good airflow and very low noise level 12cm case fan. Ultra quiet case fan Black 12cm case fan 3-pin motherboard connector  Application  PC Case fan  Fan dimension  120 x 120 x 25mm  Fan speed  1200 R.P.M.  Fan airflow  38.4 CFM (ft3/min)  Fan air pressure  1.4 mm H2O  Fan life expectancy  30000/hrs  Bearing type  Sleeve Bearing  Connector  3-pin with RPM sensor wire  Voltage rating  12V  Noise level  17.5 dB(A)  Product code  AK-174BK-S 3 to 4 pin adapter 4 case screws