All Black Sleeved 4 Way PWM Fan Splitter Hub Package contents: 1 x 4 Way PWM Fan Hub 4 x M3 screw Feature： All fan headers on the motherboard are 4-Pin. Most fan headers posses a foolproof insertion design. When connecting a fan cable, be sure to connect it in the correct orientation(the black connector wire is the ground wire). The speed control function requires the use of a fan with fan speed control design. For optimum heat dissipation, it is recommended that a system fan be installed inside the chassis. Note： Be sure to connect fan cables to the fan headers to prevent your CPU and system from overheating. Overheating may result in damage to the CPU or the system may hang.
