I had to change the adapter charger original area of my Acer sectionnait which the cable in two places the plastic cable is of poor quality. since I bought this new adapter, I lose control of my computer when plugged in, the cursor becomes like crazy and not responding to the request. I sometimes find the direction of the computer if I unplug, but the disruption can continue when unplugged! this problem did not exist before and if I want to avoid it I must go through the mouse and give up using the pad.