* [[Y-MEM]] ([[TotO]])
* [[128k on GX-4000]] ([[User:Rewk]])
* [[CPC 6320 - internal 320K for CPC 6128]] - 320 or 512K internal RAM, requires soldering - (eto)
* [[ULIfAC]] (512kB Ram/32XROM Board/256K Ram+16X Rom board (ikonsgr)
* [[CPC iRAM|CPC iRAM - internal DIY Plug'n Play RAM expansion]] (eto)
=== Sound ===