27Ω PC for Case Fan RPM Speed Reduction Connector Resistor Cable Quiet Mo
Features: There a two types o connectors or sale: 3 pin and 4 pin connector.
3 pin connector is dedicated for regular 3 pin case fansr
4 pin connector is dedicated for PWM controlled fans which can work with a variable speed.
This simple connector let your PC case fan to run in mode.
Built-in resistor, reduce fan's speed about 35%, so your case will be more quiet and more comfortable for your ears.