Multiple Monitor Switcher

basically i was wondering if someone would help me design a multiple computer multiple display switch box. so i have two desktop computers both support dual monitors so i would connect all 4 dvi connectors to the switch box it would then switch those two computers between dual monitors and a projector. this would be done by a easy access button. im thinking something like this except with more ports kinda.
any help would be greatly apreciated.

caitlinsdad7 years ago

But I think you really want a digital solution that does isolated electronic switching like relays or with circuits.  I remember some old manual kvm switchers blowing out CRT monitors because of the electronic signal spike when it switched too fast.  Stuff might be more sensitive now with DVI and HDMI.  Good luck.