A:AnswerYou can add one or swap easily. You also have a PCiE slotx2 slot for second. I swapped a 990Gbyte Sandisk SSD. from my old PC with not much problem. Waiting til the PCIE drives to get cheaper before I add another.
Makes a big difference. I use several Adobe products and they run pretty good and load fast.
A:AnswerAt the top row of the keyboard, fifth button from the left. Press "fn" and this button at the same time to turn on/up backlight to keyboard. The fourth button from the left turns the light off/down.
A:AnswerIt really depends on how you use it, there are many things that can drain the battery and there are also many things that can preserve it. let's just say I'm at 88% now and it's projected to last for 5 hours.
A:AnswerI hope that hasn't happened to you, but they will fix it. Know in advance that ASUS customer service is a massive pain, and you will have to mail it in and be without it for weeks.