Another suggestion would be to get a cheap powered USB port from Staples or whatever you have locally. I got a couple for around $5 each. I am constantly storing info on thumb drives, so I need to have quite a few ports. (Currently attached to USB - wacom tablet, laptop fan, mouse, 5v PT, USB cable charging my Leo, external back-up drive, 3 thumb drives.) My powered ones work for the 5v PTs I got from madvapes.