ModTek 8 x 4-Pin PWM PCB Fan Splitter Power up to Eight 4-pin PWM Computer Fans (3-Pin fans are also compatible but there will be no PWM control) PWM/Tachometer output (4-pin PWM connector, PWM & Tachometer wires only) 4-Pin PWM Style Power Cable/Splitter Can be attached with pre-applied ahesive backing