- '''Usifac II schematics''' & raster implementation:https://www.cpcwiki.eu/forum/index.php?msg=212833
- '''LiliCPC, the LARGEST Largest Game Launcher collection''' ever created: https://www.youtube.com/watch?v=0qvMmoQs0bc Download [https://mega.nz/folder/93pR2KiA#qlkiFakrZhSzmko65EbTWw/folder/pmpEiYBZ '''here''']
- '''Symbos supporting USIfAC II''': https://www.cpcwiki.eu/forum/index.php?msg=225997
- Load '''CPM PLUSPlus''' for USIfAC II (mass storage support): https://www.cpcwiki.eu/forum/applications/hdcpm-boot-and-run-cpm-plus-from-hard-disk/
- A small Basic utility for easily mounting dsk images to the 4 image slots: https://www.cpcwiki.eu/forum/index.php?msg=200760