High Quality NEW!!! From 800*600 to 1920*1200 input Up to 720P/1080i/1080P@60Hz Compatible OS: Windows, Linux OS Share your video/audio/data from PC or Old-styled laptops, Desktops,DVD that has only VGA ports to any HDMI-equipped devices like Smart TVs, monitors, projector & displays for big screen viewing! The 3.5mm audio jack needs to be connected to earphone port, not the microphone port or a speaker! How to use: Insert the VGA into the computer (desktop/laptop/notebook/DVD). Insert the USB into the related interface on computer for getting the supplementary power. Insert the 3.5 Mini Jack into the Audio output on your source device (PC, Laptop, xbox etc.) Insert the HDMI to displays with HDMI female interface. (TV, monitor,projector or display screens). Generally, signed as HDMI 1/HDMI 2,/HDMI 3 or DVI/DP/HDMI & others.