Well, I think that I need to add here some comments, which some may consider angry, but all I want is to be accurate. I mean, not only myself, but others too ?   So, first problem - the name. Why ACSI2STM - that does not make sense. Every STM has ACSI port, so it is actually something like ACSI2ACSI .  It has SD card socket, uses SD cards, so that should be in name. Suggestion:  something like ASTtoSD (since ACSI2SD is used already) .   Quote from it's Github page: " Max