OWC USB 2.0 Multiple Display Adapter: The device supports screen resolutions up to 1600 x 1200 pixels, and works with DVI, HDMI and VGA-equipped displays. The interface can be used to mirror the image on your internal screen or to extend the desktop to allow you to use more applications or open more windows at the same time.
The USB 2.0 Display Adapter comes with a USB to DVI adapter, software, four-foot USB 2.0 cable, DVI to VGA adapter and DVI to HDMI swivel adapter. A device that makes it possible to connect an additional monitor to your computer using USB 2.0 instead of a display connection. It costs US$99. System requirements call for Mac OS X 10.4.11 or later.
