Converts USB to HDMI only. Will not convert HDMI to USB. Drivers required. *USB 3.0 & USB 2.0 supports resolutions up to 1920x1080 with 60hz refresh rate. Full Specs. *Adapter can be used to extend computer desktop monitor for dual screens. *Works with Windows PCs only. Laptops, desktops, etc.(Not compatible with Mac OS) *Works with either USB2.0 or USB3.0 *Supports audio signals over HDMI cable Must install drivers to work.