I've got a handful of VGA video cables. Is there a way to know which (if any) are UXGA cables? Is there a certain marking on the cable jacket I should look for, besides "UXGA" of course :) ?
Although "VGA" technically means 800x600 resolution, the term "VGA cable" does not connote the resolution that the cable supports.
All your VGA cables should support UXGA (and higher) resolution.