VGA to HDMI Adapter with USB Power and Audio. Rocstor Premium VGA to HDMI Adapter with USB Audio and Power enables you to transform your VGA Port on your laptop or desktop into an HDMI output. This adapter will support resolutions up to 1920 x 1080 – 1080p, utilizing the highest video quality from the VGA output, no installation required, simply plug-and-play. Additionally, there is a built in USB power cable in order to power your device from your USB port on your laptop or computer. PC or Mac compatible, however when using with a Windows® computer, the adapter will support a native USB audio, enabling you to add your computer audio to the HDMI signal. Backed by Rocstor 2-Year Warranty.