Quite a while back I bought a panel-mount USB adapter that will plug into the USB port on the EFIS. This port is used for loading flightplans and software to the EFIS. I finally got around to fitting the port to the panel. I'll just have to be sure it is well labeled since this port cannot be used as a charging port for phones, MP3 players ect. The hardware is just temporary stuff I had laying around. I have some proper hardware on order.