The Care Cartridges are taller than the Acorn ones. This allows the ROMs to sit well clear of the Master 128 casing, and also allows ROMs on a carrier board to be used. The ROMs are aligned horizontally instead of vertically.

This cartridge is used in Station 1. The ROM you can see is Acorn ANFS 4.25 and the empty socket usually contains the ribbon cable for my ROMBox.