[citation][nom]jn77[/nom]because how many 4k displays have 4 Dual Link DVI or 2 HDMI/ Display port connectors?, most would have 2 dvi and 1 of each HDMI and display port. You still need 2 cables to drive 4k right now on 1 moniter. none have 4 ports that can re-combine the signal from 4 sources.[/citation]
I'm pretty sure that Displayport's latest version and maybe also HDMI's latest version can support 4K with a single cable. Maybe we'll start seeing single cable, single display 4K tests once they become more common on graphics, motherboards (for IGPs), and the 4K displays.