Updated: 11/13/2018 by Computer Hope
molex power connector

Molex is the name of the company who develops computer and other related connectors and products. Also known as a Molex power connector (pictured), it connects your computer power supply to drives and devices inside the computer.

What devices use a Molex connector?

Almost all devices inside your computer use a molex connector. Below are the common devices that connect to a molex connector.

Molex diagram

Below is a diagram of the four Molex connectors and an explanation on each pin.

Computer molex power diagram

Pin Wire Color Signal
1 Yellow +12v
2 Black Ground
3 Black Ground
4 Red +5v

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