A:AnswerIt works 6 hours nostop of video play, so thats pretty good, i left it unplugged the other day and my girls watched movies on it all day with ni problem
A:AnswerYes it easy if you have a T5 torx bit tool. Caution - there are 2 Philips screws under the rear 2 rubber feet also to take off the bottom panel. Carefully pry up the 2 rubber feet to reveal the screws (they are just stick on). You must use a PCIe M.2 card - not a SATA III card. It will run at x2 speed and not x4 speed. As supported by the motherboard.