The Master Compact has a card edge connector on the right-hand side which provides an expansion interface. As far as I know, the only company to come up with a unit to fit to the connnector was Mertec, who produced the expansion module fitted to this Compact. Please click on the picture links above to learn more.

This set is from March 2009, but in March 2022 I reprocessed the pictures from the original image set, leaving them at their original size.

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