PS/2 Mini-DIN 6-pin connectors are used for PS/2 keyboards (purple) and PS/2 mice (green) on IBM PC compatible computers from 1987 through the 2000s when USB replaced them.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | DATA | Bidirectional serial data | BUS |
| 2 | NC | Not connected | I/O |
| 3 | GND | Ground | GND |
| 4 | VCC | 5V power | PWR |
| 5 | CLK | Serial clock | BUS |
| 6 | NC | Not connected | I/O |