* [[ACU_Romboard_(DIY)|ACU Romboard]] (ACU)
* [[CPC4MB|CPC4MB - 4 MB memory expansion]] ([[Yarek]])
* [[DualOS|Dual OS for CPC6128 using a 32K EPROM]] (Bryce)
* [[DIY_Cartridge|DIY Plus Cartridge]] (Bryce)
* [[Inicron RAM-Box|Inicron RAM-Box]] (Inicron)