So my pc is pretty old, but when i hook it up on escribe, my mod only charges with 0.50/0.52 Amps is this because of the usb 2.0 port, or should i worry that my mod is faulty. i tried to look around but couldnt find anything confirming that its the USB 2.0 port im going to visit a friend soon to test, but if any of you guys can give some input it would be much appriciated. Thanks