UPDATE:
This device works GREAT. It has USB ports (3), a SD slot, plus an
ethernet connector (I did not find out how this is used).
On a single USB flash drive, I put all my .D64 image files from actual
floppy disks..
Using Ultimate -II+, I can access any one of these .D64 files on the USB
flash drive just as though it was a real floppy disk.
John