IBM Asynchronous Communications Adapter

This card does exactly what the name implies… it adds a serial port to the computer. Which i use for my awesome PTT Telecom mouse.

More information on this card can be found on i’ve set the jumper in the middle so the card can go into the special slot 8.

To connect the mouse on this card i use a db25 to db9 adapter. You can still find these cheaply on AliExpress search for ‘db25 to db9’.