GX4000 cartridge

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A cartridge for the + series

A cartridge system was introduced with the launch of the CPC+ series. This enabled developers to destribute games via cartridges on the new Amstrad. The cartridges are protected with the ACID chip.

Technical specs.

There are different version of the cartridges which contain EPROMs with different sizes. For each EPROM size, a pair of contacts have to be closed.

EPROM type EPROM size Contacts
27C512 64kb LK3
27C1001 128kb LK1 + LK6
27C2001 256kb LK3 + LK6


RAM7, a french hardware developer, created a device to hack CPC Plus cartridges.

Pictures