StarTech.com USB to DVI Display Adaptors - StarTech.com USB2DVIE3, The USB2DVIE3 USB DVI Video Adaptor from StarTech.com offers a perfect external multi-monitor solution, enabling you to add a high-resolution (up to 1920 x 1200) external DVI output to your desktop or laptop computer system using an available USB 2.0 port.A cost-effective solution for systems that lack the outputs required for a multi-monitor set-up, this high-performance USB to DVI adaptor can be used to mirror your primary display and show the same image on both screens, or extend your desktop to double your workspace.This small form factor USB video adaptor can be used with up to 4 additional USB video adaptors, creating multiple DVI connections to add additional displays quickly and easily - all without having to open the computer case to add extra video cards.It is backed by a 2-year warranty and free lifetime technical support. StarTech.com USB2DVIE3 USB DVI Multi Monitor External Video Adapter