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