A cartridge system was introduced with the launch of the CPC+ series. This enabled developers to distribute games via cartridges on the new Amstrad. The cartridges are protected with the [[ACID]] chip.
== Technical specs. EPROMs ==
All known manufactured cartridges contain EPROMs (rather than PROMs or ROMs). The cartridges can be fitted with different EPROMs in range of 32K through 512K (actually produced are only 128K..256K). The cartridge PCBs typically include six [[LK Links]] to match the PCB to the EPROM pin-outs:
VCC ---LK1--- EPROM.A18 ---LK2--- CA18
VCC ---LK3--- EPROM.A17 ---LK4--- CA17