A:AnswerYes you get two 4+4 cpu cables so you can hook that up no problem just use the full 4+4 cable in the big slot and split the other 4+4 it’s pretty easy snaps apart.
A:AnswerThis power supply is exclusively for computers and requires an AC outlet to run. You might want to look into a generator if you need something for camping.
A:Answeryes, it will fit in the hp omen that u have. I had the same one just the 750W one in my hp omen and it fit, this one has same specs but is just a tad bit longer.