| EXPANSION | DATE | DESCRIPTION | FORMAT | LINKS |
|---|---|---|---|---|
| CTC-AY | 2012 | Entertainment System with cartridge slot, 6ch audio, CTC rasters | 8x10 | - |
| D-ROM | 2017 | 2x 256K standard ROM board for dual configurations (ROM7 support) | MX4 | - |
| MegaSound | 2018 | Soundcard with advanced audio capabilities (PCM, FM, CSM, SSG) | MX4 | - |
| MiniBooster | 2012 | Serial Board with TTL to Bluetooth, RS232, SPI, USB, ... | MX4 | Installer and tools |
| MultiPlay | 2015 | Dual DB9 game ports to plug controllers or Amiga mouse (ballistic) | MX4 | QuadRaster test (Axelay) |
| MotherX4 | 2013 | 4x MX4 slots motherboard to plug them all (passthrough, reset, psu) | 8x10 | - |
| Play2CPC | 2022 | Entertainment System with RW cartridge slot, Arcade sound, NMI rasters | EDGE | Abalore / ACME (WIP) |
| PlayCity | 2014 | 6ch audio and CTC rasters INT (came from CTC-AY + Light Gun pins) | MX4 | Wiki page |
| X-MASS | 2015 | Standard 8-bit IDE mass storage interface + SLC solid-state drive | MX4 | Installer for X-MEM |
| X-MEM Y-MEM | 2013 | 512K ROM / 512K RAM board (bootable, flashable, ... The must have) Unofficial extra 512K ROM / 512K RAM used to expend the X-MEM | MX4 MX4 | Installer and tools - |
| Z-MEM | 2016 | 1024K RAM board (with advanced memory settings) | MX4 | RAM test |