asked a perfectly reasonable question and got the correct answer...

when transferring from pc to panel in the KN7000/2600 through Song Manager and the usb connection (you can't copy from pc to sd through Song Manager, you copy files to keyboard memory and then save to sd, unless a restore operation) you are using a pc software and pc drivers designed for the KN7000/2600 for midi transfer and a pc with windows loaded which is a host enabled device capable of talking to slave devices such as KN7000/2600 and any other usb slave device such as a usb floppy drive or usb flash drive (since this has been raised as if there is some difference to a usb floppy when for this question there is no difference at all).

A usb floppy (or usb flash drive) has no software, drivers, or transfer protocol, and neither has the KN7000/2600 the hardware or software to be enabled as a host device, so no communication is possible. Connecting the two together would be no different to connecting two usb floppy drives to a powered hub without any connection to a computer and expecting to be able to copy a floppy from one to the other.

To work it would have to be an intelligent usb floppy drive with host capability, which I have never seen yet, though I do have a battery powered host device for connecting two slave devices in the field such as cameras or card readers and portable hard drives. However even this would not work because the transfer protocol is designed for copying from one device to a folder on the other, both being usb mass storage devices. There would be zero capability of copying files from usb floppy to sd and updating the system files to enable the files to be seen in screen, and not even the correct protocols to be able to load into keyboard memory, the KN7000/2600 is not configured as a usb mass storage device, so a complete non-starter.