New OneLink+ to Ethernet Adapter Interface Connector Cable For Lenovo ThinkPad Yoga 260 460 X1 Yoga Cable X1 Carbon 20FB 00JT801 - Newegg.com
2.5GbE USB A to Ethernet Adapter – NBASE-T NIC – USB 3.0 Type A 2.5 GbE /1 GbE Multi Speed Gigabit Network – USB 3.1 Laptop to RJ45/LAN – Lenovo X1 Carbon,
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