I bought mine from Kevin at Texelec and it has been a nice addition to the JR...
I have an older unit but the link below show some new versions, look pretty nice
if anyone has one please share your experience !
Here is picture of the style I have, still can find them on ebay, but be sure it is correct.
I got mine from Kevin and it worked.
https://www.pcjribm.com/pcjrfiles/HxC_Manual.pdf
http://hxc2001.free.fr/floppy_drive_emu ... pyemulator