This product has been used and still works Sold as is USB C to Gigabit Ethernet Adapter - 1Gbps NIC USB 3.0/USB 3.1 Type C Network Adapter - 1GbE USB-C to RJ45/LAN Port Thunderbolt 3 Compatible Windows MacBook Pro Chromebook Connect to a Gigabit Ethernet network through your computer’s USB-C port Product ID: US1GC30DB
eBay