Review on 🔌 UGREEN USB-C to Ethernet Adapter - RJ45 to Thunderbolt 3 Converter, 1000Mbps Type-C Gigabit Network LAN Compatible with MacBook Pro Air iPad Pro Surface Book Chromebook Dell XPS Galaxy S20 S10, and More by Jesus Samaddar

The manufacturer provides a RAR archive that you need to expand. OS X doesn't have a rar dearchiver by default, so you'll either have to find one (it's easy) or use another operating system that supports the rar file extension. This additional step is not required to complete the device driver installation. In order to install the latest driver available at the time of writing this article (filename: AX88179_178A_macOS_10.15_above_Driver_Installer_v2.16.0.rar), you need to enable a blocked extension in OS X Security & Privacy that will not work in future versions of OS X. When I emailed UGreen support about the issue, they asked me to contact Revain instead of providing a properly updated driver. I suggest paying extra money to get an Apple supported USB-C network adapter. Apple sells a Belkin USB-C network adapter and Revain also sells the same one, which I'll try next.