SIIGs USB 2.0 to VGA adapter is designed to quickly and easily add an additional display to your USB-enabled (USB 2.0 or later) computer. This USB to VGA adapter comes with a 16MB of built-in display memory to work flawlessly with your monitor and supports resolution of up to 1680 x 1050 32-bit color. The USB 2.0 to VGA adapter features multiple display functions including primary, extended, and mirrored, and Windows suspend and wake up modes. This USB to VGA adapter is hot-pluggable and is powered from the USB bus, no external power adapter is needed. It is a great tool to extend your display across two monitors or as an alternative display for your main screen.