BTExpert AC Adapter Power Supply for ASUS A31-X401 A32-X401 A41-X401 A42-X401 F301 F301A F301A1 F301U F401 F401A F401A1 F401U F501 Charger with Cord

this is review of the tinkin 90 watt AC adapter power cord or power supply for Asus laptops a listing of the compatible laptops is included on the Amazon site and I got this for my Asus Q 550 LF laptop I wanted a second power supply my first original OEM power supplies continues to work fine but I wanted to have a second one to leave it work so that when I take my laptop to and from work I don't have to drag the charger around and plug it in and run the wires in a neat fashion I can just leave the new charger plugged in with the wires position where I want them and then when I go back and forth just take my laptop and I have to worry about the charger now the laptop has a very very long battery life but running it eight hours continuously will probably be too much for it so I want to have the charger there to make sure I can last through the day by charging it up at lunch time so I got