RJ45 NETWORK Adapter Dongle Cable fit Lenovo ThinkPad X1 Carbon Gen 8 Laptop GT | eBay
Broonel USB Ethernet, USB Network Adapter,LAN Adapter with Multi USB 3.0 Ports Compatible with The Lenovo ThinkPad X1 Carbon 14" (7th Gen) - Newegg.com
Lenovo ThinkPad Ethernet Extension Adapter Gen 2 - Newegg.com