Phobya Splitter PCB, 4-Pin (PWM) to 8X 4-Pin (PWM) 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 Molex Style Connector for Power (12V and Ground wires only) Can be attached with pre-applied ahesive backing