It sucks when you have a capable machine with only one monitor output. What sucks even more is when you can’t add additional video cards to the machine because you opted for the “bargain” model. No big deal, go grab a couple of NewerTech USB adapters. The adapter only costs about $100 but will allow you to add an extra HDMI, VGA or DVI port to your mac. You could have as many as four on a Mac running 2048X1152, which is nothing to sleep on. Best of all, the adapter is also compatible with Windows.
Now for you hardcore enthusiasts, OpenGL acceleration is not supported. Sorry, but it’s your fault for being a cheapskate in the first place 
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Read more about it here
