A:AnswerSince you purchased this from BestBuy ask them (Geek Squad). I don't know all the specs on this model, from the online description in some requirements are vague. Sorry!
A:AnswerThe manufacturer states that it can handle 2 monitors. I haven't tried it with 2 yet, but it has the outputs so I don't think it would be an issue
A:AnswerYes it should work with your computer at it will fit in the case and operate fine just make sure you know how to properly install it and install the proper drivers (software)