The USB2VGAE2 USB to VGA external video adapter is the perfect multi-monitor VGA solution for office applications and Internet browsing. The USB video adapter features a small form factor and enables a USB 2.0 port to be used with a VGA port. A cost-saving multi-monitor or dual display option that can be used as an external graphics card for either laptop or desktop applications. The USB video adapter can be used with up to four additional USB2VGAE2 USB video adapters, creating multiple VGA connections that can be used to further extend or mirror the desktop shown on the existing display - all without having to open the computer case to add extra video cards. Backed by a StarTech.com 2-year warranty and free lifetime technical support.