StarTech.com USB C to Ethernet Gigabit Adapter Thunderbolt 3 Compatible Type Network (US1GC301AU)

Amazon

Use the USB-C port on your laptop to add a Gigabit Ethernet port and a USB 3.1 Gen 1 (type-A) port Works with USB Type-C computers such as MacBook and Chromebook Pixel and Dell XPS 12 and Dell Latitude 12 7000 Series 2-in-1 USB-C Gb Ethernet adapter/USB 3.1 Gen 1 (5 Gbps)/IEEE 802.3/802.3u/802.3ab Native driver support for easy set-up Software available for Mac OS 10.10 CONNECTIVITY TOOLS: Provided with this device, the application improves performance and security, featuring MAC Address Changer & Wi-Fi Auto Switch utilities

Zoro Tools

StarTech USB C to Gigabit Network Adapter Now you can easily connect to a Gigabit network through the USB-C or Thunderbolt 3 port on your laptop or desktop computer, and add connectivity for an additional USB (Type-A) peripheral device. It's a great companion for your MacBook, Chromebook Pixel, Dell XPS 12, Dell Latitude 12 7000 Series 2-in-1 or other devices.