New technologies at the heart of the system make your Mac more reliable, capable and responsive, and lay the foundation for future innovations. MacOS High Sierra also refines the features and applications you use every day.
DisplayLink macOS Software From this page you can download a driver for your DisplayLink® enabled USB graphics device that is incorporated in your dock, adapter or monitor. This software provides support for the DisplayLink enabled video outputs.
The audio and Ethernet support is provided by native macOS drivers from OS version 10.11. Information about macOS 10.13.4 to 10.13.6 Users of 10.13.4-10.13.6 should use v4.3.x as it contains a workaround to enable one extended USB display. An details how to enable Apple AirPlay with DisplayLink display for extend or mirror mode.