Molex
Updated: 02/21/2025 by Computer Hope
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.
- Hard drive
- Disc drive (e.g., CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Versatile Disc), Blu-ray.)
- Video card
Molex diagram
Below is a diagram of the four Molex connectors and an explanation on each pin.
| Pin | Wire Color | Signal |
|---|---|---|
| 1 | Yellow | +12v |
| 2 | Black | Ground |
| 3 | Black | Ground |
| 4 | Red | +5v |
Where can I buy a Molex cable?
Below is an affiliate link with Amazon to get a Molex cable and support Computer Hope. If Amazon isn't available in your area, we also have a link to other places to buy computer parts.
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