usb 3.0 transfers data 10 times(10x) faster than usb 2.0
You better use a usb that Yamaha suggests for your instrument in any case.
https://usa.yamaha.com/files/download/other_assets/7/1130977/genos_en_om_c0.pdffor usb on Genos see pages 110-111
Compatible USB devices
• USB flash drive
Other USB devices such as a USB hub, computer keyboard
or mouse cannot be used.
The instrument does not necessarily support all commercially
available USB devices. Yamaha cannot guarantee
operation of USB devices that you purchase.
Before purchasing
a USB device for use with this instrument, please
visit the following web page:http://download.yamaha.com/Although USB devices 1.1 to 3.0 can be used on this
instrument, the amount of time for saving to or loading
from the USB device may differ depending on the type of
data or the status of the instrument.