its 2 7/8 inches between 1st and 3rd slots. build quality seems to be great. ive only had this board running a week on a bench test with 0 issues. im very happy with this baord.
got mine from newegg and it was the new version.
32gb corsair dominator platinum 2400mhz
250g samsung 840 evo ssd for now in my bench rig. will be running intel 730's in raid