3 to 4-pin adapter	8CM BLACK FAN Improve the airflow in your case with an medium speed lo-noise 80mm case fan with style. Black frame with silver rotor blades for an eye catching experience. Lo-noise black fan frame Silver colour rotor blades  Application  PC Case fan  Fan dimension  80 x 80 x 25mm  Fan speed  2500 R.P.M.  Fan airflow  32.37 CFM  Fan life expectancy  30000/hrs  Bearing type  Sleeve Bearing  Connector  3-pin with RPM sensor wire  Voltage rating  12V  Noise level  27.85 dB(A)  Product code  AK-170BKSV-S 3 to 4-pin adapter 4 case screws