StarTech.com USB to VGA Adapter - External USB Video Graphics Card for PC and MAC- 1920x1200 - Display Adapter Connect a VGA display for an extended desktop multi-monitor USB solution Optimal performance at 1920x1200 and ideal for use with 24" to 26" monitors or smaller Connect up to five adapters to one PC for a true extended desktop experience USB-Powered operation, no external power adapter required USB Video Card / USB Video Adapter / USB to VGA Adapter Converter / External USB Graphics Card / USB to VGA / External Video Adapter The graphics adapter supports high-performance requirements and high resolution video, making it suitable for connecting large-screen monitors USB-powered operation eliminates the need for an external power adapter, enabling you to position an additional monitor without having to make the extra power connection or carry an additional cable for mobile applications Completely external device offers a simple upgrade solution saving the cost and hassle of upgrading the internal video card on your system, which in many cases would void manufacturers' warranties Optimal performance at 1920x1200 and ideal for use with 24" to 26" monitors or smaller Support for Aero themes in Windows Works with Mac OS X Connect up to five adapters to one PC for a true extended desktop experience USB-Powered operation, no external power adapter required