ahhh. thanks! when i would connect it to my mobo, is it any different? my mobo would most likely be asrock 970 xtreme 3 (2 3.0 on back) but its not confirmed yet.
I would prefer to get the USB 2.0 version since your motherboard does not have an internal 3.0 header (from what I can see on Newegg, anyway).
However, if you would like some futureproofing, I would suggest getting the 3.0 version
I think it MIGHT come with a 3.0 -> 2.0 converter.