Template:ATX power connector
Color | Signal | Pin | Pin | Signal | Color |
---|---|---|---|---|---|
Orange | +3.3 V | 1 | 13 | +3.3 V | Orange |
+3.3 V sense | Brown | ||||
Orange | +3.3 V | 2 | 14 | −12 V | Blue |
Black | Ground | 3 | 15 | Ground | Black |
Red | +5 V | 4 | 16 | Power on | Green |
Black | Ground | 5 | 17 | Ground | Black |
Red | +5 V | 6 | 18 | Ground | Black |
Black | Ground | 7 | 19 | Ground | Black |
Grey | Power good | 8 | 20 | −5 V (Obsolete) | (White) |
Purple | +5 V standby | 9 | 21 | +5 V | Red |
Yellow | +12 V | 10 | 22 | +5 V | Red |
Yellow | +12 V | 11 | 23 | +5 V | Red |
Orange | +3.3 V | 12 | 24 | Ground | Black |
Pins 8, 13, and 16 (shaded) are control signals, not power:
| |||||
Pin 20 (−5V, white wire) is absent in current power supplies; it was optional in ATX and ATX12V version 1.2, and deleted as of ver. 1.3. | |||||
The right-hand pins are numbered 11–20 in the 20-pin version. |
- ↑ "ATX Specification Version 2.1" (PDF).