I ordered and received a DC power cord adaptor for my new Acer Aspire V17. The cord was advertised that it was for this model computer. So I ordered it (Amazon) when the device arrived the jack pin would not fit my would not fit the DC-in jack on my computer. The outside dia. on the pin was OK but the inside receptical is to small for the pin in the computer DC-in jack. I think they might make adaptors for this, does any body know ? Also the DC cord from Amazon has the same output in volts and amps as my old DC cord for my HP laptop i.e. 19V out, and 4.74 A out. I guess this means I can use my old DC adaptor if I can find a pin adaptor for it, as it also will not fit the DC-in jack on my model Acer. One last thing, The AC to DC adaptor cord sent with my Acer has an output of 19V and 7.1A. Is this drop in the amperage out between AC and DC cords normal? One last thing, does any body know where I can get the dimentions I need so if I have to order I can get the right jack for my computer?