It is used to convert VGA video and 3.5mm analog audio signal in your computer to HDMI signal and display it on the large screen of the HDTV 1080p or 720p output selectable via switch; Plug and play. Supports VGA input resolution (at 60Hz): 640x480, 800x600, 1024x768, 1280x720, 1600x1200, 1920x1080 pixels.Enable HDTV to connect computer, notebook, DVD or other devices with VGA interface; No software driver needed.Powered by USB cable directly (included in package), easy to useView high-resolution PC output on an HDTV. If you want to view your PC desktop or applications on your HDTV, but lack the necessary ports, this converter is what you need. Simply plug in a standard VGA video cable into the input port of the converter along with a regular 3.5 mm audio cable , and then connect an HDMI cable from the converter to your TV. Enjoy a practical and simple addition to your AV system with this device, which is easily concealable yet capable of clear, high-definition HDMI audio and video.