QL-Bus

QL Bus was a 5 slot expansion bus card from German company ABC Elektronic and designed by Jürgen Falkenberg.

This allowed you to plug up to 5 QL-compliant cards such as memory cards and disk interfaces to a QL, although some of the older QL ROM versions were only able to detect one expansion card ROM at a time.

We believe the picture below is of the QL Bus, although it is badged JFC (Jürgen Falkenberg Computer Technik). One of the slots are marked 'Hi' and another 'Low' and it comes with 5 resistors, presumably to help with compatability.

More information is required.