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,
Lenovo USB-C to Ethernet Adapter | Lenovo US
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