*[https://thecheshirec.at/2023/11/21/5-multi-crtcs-a-vendre/ Multi-CRTC Board] Host and select between multiple CRTC chip types in one CPC
=== Floppies Floppy drives ===
*[[SDiskEmul]] Floppy-drive emulator released in 2007. Abandoned now. Supports DSK, EDSK disk-images