This might belong in a more generic subforum. Is there a difference in the power available between USB 1.0 and USB 2.0 or later? The computers we have at work are pretty old (though they suffice for what we need them for) and the USB ports are ver 1.0. I haven't tried charging my Inspire off it, but could like to know if it's adequate. Is it just a matter of how long it might take to charge or is there no difference?