DuinoMite-IO is an add-on for the DuinoMite BASIC Computer, adding connectors for a PS/2 keyboard, VGA monitor, composite video/audio, and headphones. This turns your DuinoMite into a completely self-contained computer, rather than having to use it through a PC's terminal emulator.
The included ribbon cable with IDC10 connectors attaches to the EXT1 port on your DuinoMite (not UEXT).
If you need one, pick up an RCA cable. You may want to pick up some earphones or a portable powered speaker too.