This is the circuit board from the cartridge out of the casing. This cartridge is one of the two which is used in Station 200, with ANFS 4.25 and ADT 2.00 chips in it.

Station 200 has a monitor stand in the form of a Watford Electronics double drive plinth, so the Care cartridges are too big to fit under it, so I suppose the Acorn ones do have a use!