DXG(Dual Xpress Graphics) supported?

[imported_Nate0]

Fixing my shopping cart, I came across this mobo. Now at first, I noticed that it didn't say SLI
(I don't want SLI) and so it atracted my attention. While reading through the features, I saw
DXG(Dual Xpress Graphics) supported? Now, I am not new to computers but, I have not come across this before. Could some one explain it to me? Please don't flame, thanks.

DFI LANPARTY UT NF4 ULTRA-D MOTHERBOARD ATX S939 NFORCE4 ULTRA DDR 2PCI-E16 PCI-E4 PCI-E1 2PCI ATA RAID DUAL GIGABIT LAN 8 CHANNEL AUDIO 1394

I am also looking to move in a PCI-E direction instead of AGP, but WITHOUT SLI

 

[n yusef]

DXG is something DFI made so that you can run more than two moniters simultaniously. I doubt you'll want that. On the other hand, that is probably the best board for overclocking right now. I have one, and I can say that id you get it, you won't regret it. (That was the lamest rhyme ever. )

 

[imported_Nate0]

Ok, well I wouldn't mind running 2 monitors, i have another one laying around the house.
Also, This mobo is very afforable for me, is this like a very good PCI-E? I want a PCI-E without sli