thermal sensor   thermal sensor     8CM BLACK PAXFAN A 80mm DC axial fan with automatic RPM speed control via a thermal sensor. Black 8cm case fan Autospeed control with thermal sensor  Application  PC Case fan  Fan dimension  80 x 80 x 25mm  Fan speed  1200-2600 R.P.M.  Fan airflow  15.84-35.32 CFM  Fan air pressure  0.52-2.25mm H20  Fan life expectancy  40000/hrs  Bearing type  Ball Bearing  Connector  3-pin with RPM sensor wire  Voltage rating  12V  Noise level  18-30.5 dB(A)  Product code  AK-181BKT-C 3 to 4-pin adapter 4 case screws