Currently on slot 1, I'm using GTX680. I have slot 2,3 and 4 open and it seems like 3 and 4 are speed 4x. Here are my questions: 1) what is the speed for slot 2? is it the same 16x as slot 1? 2) What would be some part option that a lot of people use in these pcie slots? 3) If the option is blade ssd, since I can't boot my OS up from there, it's just for data backup purposes right? I mean, I would love to have blade for my main OS and bootup for my current SATA2 speed ssd, but if that's not the case I don't see a point. 4) For 3), can you boot up for Windows Boot Camp though? 5) I already bought usb 3.0 hub, but I can utilize that in slot 3 or 4 and still wouldn't make a difference than putting on slot 2 right? FYI, I'm not into raid. Thank you so much for your help in advance.