This usb 30 to vga video adapter works as an external video card enabling the usb port on your computer to output video to a vga display at 1920 x 1200 resolution the adapter also features on board driver installation which means the adapter will work when you connect it even without a software disc or internet connection save time and hassle with on board driver installation for the ultimate in hassle free installation this usb video adapter features on board drivers which prompts for i