Source: AnandTech
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A while back we got a chance to look at a little box from Matrox called the DualHead2Go. This was basically a little black box which split a single video signal so that it could be output onto two separate displays. We found it to be an interesting piece of equipment that showed potential in certain areas like gaming and office situations, but was somewhat limited in its use. We would have liked to have seen a dual-link DVI version of the DualHead2Go, and while the wide resolutions were nice, the split down the middle from the sides of the two monitors pressed together made it all but useless for most types of gaming. This is assuming you couldn't afford the awesome yet outrageously expensive dual video projector setup of course.