Hi everyone, does anyone know of a way to output video from a MacBook pro to three different projectors (from just the one computer? Is there a lead that goes from the laptop to three ends (rather than the usual 1)?
yeah, matrox is the way to go for 3 split. right now im using a 2 projector setup but utilizing the pass-through (image duplication). anyway, here is some patcher stuff that might help if you pick one up. basically 3 windows and a full-screen toggle ;) keep in mind installing the drivers for the matrox is a HUGE pain in the ass and as sensitive as a skunk humping a hedgehog; one bad poke and the week is ruined.
If you want to just send the same image to 3 projectors then yes, use this sort of thing. Some projectors will also have a monitor output that can send on whatever is coming in to another projector/monitor so you can just daisy chain them.
If you want to split an image across the 3 projectors you'd need a triplehead2go.
The box you linked should work fine with a MBP VGA output, but if you are concerned just ask Maplin a question at the bottom of the page you have linked.