The PWM fan splitter connects 3 computer fans to one motherboard fan header, used to install more fans to keep the PC cool. 1 4 Pin 1 to 3 Way PWM Fan Splitter Adapter Cable. Sleeved in Black Braiding With a 4 Pin Female Connector at One End and Splits to 3 Male Connectors at The Other End ( 1 of them is 4pin ,2 of them is 3pin ).
