3 to 4-pin adapter	8CM BLACK PAXFAN Improve the airflow in your case with an Ultra quiet 80mm Paxfan with 3-pin connector and twin ball bearing to give a consistent long life performance. Ultra quiet 8cm black case fan  Application  PC Case fan  Fan dimension  80 x 80 x 25mm  Fan speed  1800 R.P.M.  Fan airflow  21.15 CFM  Fan air pressure  1.49mm H20  Fan life expectancy  80000/hrs  Bearing type  Twin Ball Bearing  Connector  3-pin with RPM sensor wire  Voltage rating  12V  Noise level  18.08 dB(A)  Product code  AK-181BK-2B 3 to 4-pin adapter 4 case screws