Amiga mice can sometimes be difficult to be find. They are direct-switch and don't use any sort of protocol like PS/2/USB/ADB mice do. However, many ancient DOS machines used the Logitech Bus/Microsoft InPort standard, which is electrically identical to what the Amiga used. Only the pinout is different.
| Signal | Amiga Pin | Logitech Bus Mouse Pin |
| +5V | 7 | 1 |
| GND | 8 | 9 |
| H-Pulse/X2/XA | 2 | 2 |
| HQ-Pulse/X1/XB | 4 | 3 |
| V-Pulse/Y1/YA | 1 | 4 |
| VQ-Pulse/Y2/YB | 3 | 5 |
| Left Mouse Button | 6 | 6 |
| Middle Mouse Button | 5 | 7 |
| Right Mouse Button | 9 | 8 |
Amiga connector:
Logitech Bus Mouse connector:
