Ah ok was going off the pictures. I looked but didn't see anything until i looked again. You can either use a VGA and a DVI or if you want to use HDMI and DVI since the Monitors have have VGA, DVI, HDMI and the Video card has all of those so it doesn't matter what combo of the 3 you use. Doesn't matter what your doing you won't really see any difference between the 3 either so it really doesn't matter what 2 of the 3 you use.