12V/5V Power Supply Hookup Guide
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bboyho
bboyho 
Hardware Overview
The power supply's pinout is shown below. The connector's molding should have numbers associated with the output to help identify the connection. You will also notice that the connector is polarized with the two chamfered corners.
Pinout Table
Warning! Depending on the manufacturer, the colors of the wires inside the sheath may vary. Make sure to test the connection with a multimeter before before connecting to a load and powering your circuit up!
The following table describes the ATX connector's pinout and what color the wire may look like.
| ATX Pinout (4-Pin) | 12V/5V Power Supply | Notes |
|---|---|---|
| 1 | +12V | "Red" |
| 2 | N/C | May Not Be Not Connected |
| 3 | GND | "Yellow" |
| 4 | +5V | "Black (or White)" |