OLD

| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | Keyboard In | ← | Keyboard In |
| 2 | GND | Ground | |
| 3 | Keyboard Out | → | Keyboard Out |
| 4 | GND | Ground | |
| 5 | Mouse In | ← | Mouse In |
| 6 | GND | Ground | |
| 7 | Mouse Out | → | Mouse Out (!) |
| 8 | GND | Ground | |
| 9 | GND | Ground | |
| 10 | VCC | → | Power , +5 VDC |
| 11 | VCC | → | Power , +5 VDC |
| 12 | VCC | → | Power , +5 VDC |
| 13 | VCC | → | Power , +5 VDC |
| 14 | VCC | → | Power , +5 VDC |
| 15 | VCC | → | Power , +5 VDC |
NEW

| Pin | Name | Dir | Description |
|---|---|---|---|
| 1 | GND | Ground | |
| 2 | GND | Ground | |
| 3 | VCC | → | Power , +5 VDC |
| 4 | Mouse In | ← | Mouse In |
| 5 | Keyboard Out | → | Keyboard Out |
| 6 | Keyboard In | ← | Keyboard In |
| 7 | Power On | ← | Power On (Configurable as Mouse Out on 3/80, 4300, 4400 and 600MP CPUs!) |
| 8 | VCC | → | Power, +5 VDC |