* [[KDS Twin 8bit I/O Port]] (1/1985) (4/1986 advert says it uses Z80APIO)
* [[KDS 8-Bit Printer Port]] (4/1985) (4/1986 advert says (new version?) without power input needed)
* [[KDS Sideways ROM Board]] (7/1985: original version for 4 roms) (4/1986: new version for 5 roms)
* [[KDS Communicator 104]] (7/1985) (this modem connects directly to the CPC's expansion port)
* [[KDS Power Controller]] (4/1986)