4-Pin Molex to 4-Pin PWM Fan Power Adapter Cable

Utilize a 4-pin peripheral molex power connection from your ATX power supply to power high current 3-pin and 4-pin computer fans, water pumps, and other devices

The tachometer (pin 3) and PWM signal (pin 4) are wired to the female input fan connector. 12V power is provided from the 4-pin periphral molex connector.