Ray,
To find info just do a search on: hxc2001
http://hxc2001.free.fr/floppy_drive_emulator/index.html#SDCARDFloppyemulator
The Model is: SD HxC Floppy Emulator REV F 3"1/2 Form Factor/cased
The site has all the specs, docs, downloads, etc.
I think the cost is 99 Euros or about $135 USD. Not bad considering a replacement Yamaha floppy
drive, would cost more.
Eric