yomgam 3 Way 4 Pin PWM Fan Splitter Cable,12 inch PC Fan Extension Cable, CA PWM Fan Extension Cable, for Computer ATX Case 4-Pin/3-Pin Cooling Fan Cable (2 Pack ） 3 Way 4 Pin PWM Fan Splitter Cable to the 4-Pin header on the motherboard and splits the signal to 3 PWM fans; PWM fans can spin at the same speed using software from a motherboard equipped with PWM control Each extension cable supports PWM function and speed regulation Each PWM cable extension cord is braided in flexible and sturdy black nylon to provide long-lasting performance 2 pack black fan power supply extension cables,Each fan extension cable is 12 inches long for optimum PC fan placement. extension cable supports PWM function and speed regulation，support 4-pin and 3-pin fans cable, the fan power cable compatible with 4 pin and 3 pin PC case fans. We reply all emails in 24 hours and provide question-asked refund if you received damaged item or when other product & package delivery issues happened !