So I'm getting a new PC (Will have pcpartpicker link below) and I just had a few questions about it. Firstly, is the build that I have selected wifi enabled? I have my current setup up in my room and there is not enough space to move it down to where the router is so that I can hook up etherenet, I included the ASUS wifi adapter but I am not sure whether that just increases wifi productivity or whether it enables it. Secondly, does the motherboard that I selected have a built in sound card? If it does not could you suggest me some other options that are around the same price range. Thirdly, the board that I selected has 2 USB 2.0's and 2 USB 3.0's. What is the difference between USB 3 and 2 and should I upgrade my board to one that has four 3's instead. Lastly, does the case that I selected have enough room for all my components, 4 USB slots, a place for the wifi adapter, etc. It's a pretty expensive case so it SHOULD work fine. All help is greatly appreciated.
http://pcpartpicker.com/p/WBHh
http://pcpartpicker.com/p/WBHh