* [[CPC4MB| CPC4MB - 4 MB memory expansion]]
* [[HX-RX1|Cirkit HX-RX1 Rom Expansion Card]]
* [[dk'tronics 64Kb|dk'tronics 64Kb memory expansion]] * [[dk'tronics 128Kb memory expansion]]* [[dk'tronics 256Kb memory expansion]]
* [[dk'tronics Silicon Disc]]
* [[Dobbertin EPROM 224]]
* [[Dobbertin Memory Expansion]]
* [[Universeller EPROM Programmer 4004|Dobbertin ]] [[Universeller EPROM Programmer 4004]]
* [[Microstyle Romboard Xtra]]
* [[RAM BOX ]] 512Kb memory expansion]]* [[Ramcard 128|]] (RAM7 Writeable ROM expansion]])
* [[RAM7 2Mb memory expansion]]
* [[Rombo Rombox]]
* [[X-ROM ]] ROM expansion and ROM burner]]
* [[Vortex Computersysteme#SP|Vortex SP 64 - SP 512]] RAM expansion
* [[Inicron RAM-Box]]