* [[Amstrad ROM Expander]] ([[Simon Dean]] - DIY)
* [[Britannia ROM Board]] ([[Britannia]])
* [[Honeysoft ROM Board]] ([[HoneySoft]])
* [[Cirkit HX-RX1 Rom Expansion Card]] ([[Cirkit]])
* [[Inicron ROM-RAM-Box]] (Inicron)
* [[CPC.Flash]] internal/external 4MB ROM upgrade
* [[CPC GX4000-Multi EPROM Cartridge]] Use a GX cartidge for modified ROM software
* [[Dobbertin EPROM 224]] ([[Dobbertin]])
* [[Fleet EPROM Programmer|Fleet EPROM Programmer]]
* [[Honeysoft ROM Board]] ([[HoneySoft]])
* [[Inicron ROM-RAM-Box]] (Inicron)
* [[KDS ROM Board]] ([[KDS Electronics]])
* [[Maplin ROM Box]] ([[Maplin]])