This product was advertised in Amiga Format during 95.
It is a 2 track Magcard reader and plugs into the Joystick port (port 2).
It comes with 2 programs, one to read track 1, and the other to read track 2.
The software is available on TOSEC
, but to bad the supplier couldn't be hunted down.
The software seems to be KS1.3 compatible. Your encrypted pin is stored on Track 3.