That console to PC monitor thingy

[Supercow]

What was it called again, it was something like XGA or XVGA, can someone please remind me.
I want to connect my Gamecube to my monitor, and i will probable at some point get a Xbox360. Will the quality of the 360's video feed be reduced if i use said device?

Thanks

 

[Supercow]

Thanks, thats the jobby