MX4SIO (Memory eXpansion For SIO) is an adapter for the PlayStation2 that lets you connect TF/SDcards to the memory card slot.

- How to Make the Game Card for MX4SIO Adapter?
MX4SIO adapter can’t accept all PS2 games, please consult the OPL game compatibility list. Can check it in the link here:
https://docs.google.com/spreadsheets/d/1zHxhwT4nSkrCCAqJNlSndw1Yeh_9g3eL/edit?pli=1#gid=669997000
Please use the FMCB which has the latest version OPL v1.2.0-Beta-1828-b47f7db to start the MX4SIO adapter . You can download it from the address below:
https://github.com/ps2homebrew/Open-PS2-Loader/releases
- How to Upgrade the OPL of the FMCB ?
2.2 The video of Upgrading the OPL