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Good device, go for the USB 3.0 instead
on December 10, 2013
Went out on a limb and purchased this device to test with an external monitor on my MacBook Air (also used with a MacBook Pro).
Basically amounts to having an external graphics card that provides you the ability to add more monitors to your setup then the internal graphics card supports, with this device specifically working over USB 2.0. Device plugs into your computer via USB, monitor plugs into the other end. Device is powered with an external power supply.
If your device doesn't have USB 3.0 ports and you need more monitors, then this is the device for you. If your computer has USB 3.0 capabilities, buy the USB 3.0 variant instead. The increased throughput is well needed for seamless quality.
That being said, DisplayLink provides the drivers for these devices, regardless of how they're rebranded (multiple companies sell extremely similar devices). As of the writing of this review they work much better on Windows then on Mac OS X as Mavericks significantly nerfed multiple-monitor setups over DisplayLink (check out DisplayLink's website for specifics).
Device comes with an abundance of connectors, including a VGA and HDMI adapter, which was very nice. I'm currently using it over the built-in DVI capability, but have tested it with both adapters.
Biggest point is that if you have USB 3.0, spend the extra money. I thought I'd be OK with 2.0 but was sorely mistaken.
Your mileage may vary, depending on your computer's processing power and ability to render and extend its displays. Don't expect seamless video on older computers, or the ability to multi-screen game. My personal use cases work well (static documents and webpages).