* [[CPC4MB| CPC4MB - 4 MB memory expansion]] ([[Yarek]])
* [[c't 512 KB internal RAM expansion]] (DIY) (c't magazine)
* [[CPC 6320 - internal 320K for CPC 6128]] (DIY) (eto)
* [[Data Media Memory Expansion]] ([[Data Media]])
* [[Dk'tronics memory expansion|Dk'tronics Memory Expansion and Silicon Disc]] ([[Dk'tronics]])