https://forums.grc.com/threads/usb-floppy-drive-support.1351/
USB Floppy Drive Support | GRC Public Forums
USB Floppy Drive Support in SpinRite 7.0
floppy drive supportpublic forumsusbgrc
https://www.cbmstuff.com/forum/showthread.php?mode=threaded&tid=560&pid=3585
Native ST/STE floppy drive support?
floppy drive supportnativest