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Matrox Graphics eXpansion Modules


If you are looking to add more screen area without a lot of expense or effort, Matrox has their line of Graphics eXpansion Modules (GXM) available. Connect the VGA output from your computer to the module, and multiple monitors to the outputs and you have an instant multi-display system. The DualHead2Go that connects two monitors has been available since 2005. They are now going to introduce the TripleHead2Go that will allow you to connect three 19″ displays and achieve a maximum of 45″ disagonal screen area with combined resolution of 3840×1024.

From Matrox’s press release, “At launch, TripleHead2Go will have support for more than 150 popular games including id Software’s Quake 4™, UbiSoft’s Brother’s in Arms: Earned in Blood™, Microsoft’s Age of Empires III™, 10tacle studios AG’s GTR™, Microsoft’s Flight Simulator 2004: A Century of Flight and many more. Matrox will regularly add more titles to a supported gaming list at”

The GXM simply appears to the PC as a very wide screen and then splits that resolution across the 3 screens so that the rendering is handled by your onboard video card. It is only compatible with certain ATI and NVIDIA GPUs. Available frame rates will depend on the resolution used and GPU installed in your system. Available in April 2006 for $299.

Posted by Jeff


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