Well the card that I bought has both ADC and DVI (maybe I should've been more clear on that) and the monitor (Cinema HD Display) I use for the Mac only have one of those ADC cables that is stuck to the screen, so the only option if I want to use that monitor is to plug it in the ADC port unless I get some sort of converter I suppose. Not that it matters right now but I kind of like that monitor, it's quite large :)