Lenovo X1 Carbon Gen 4 LAN Type

Hardware	Lenovo Part no.	Chipset
The OneLink+ DOCK (http://www3.lenovo.com/hk/en/accessories/docking/onelink-docks/TP-OneLink%2B-Dock-UK/p/40A40090UK)	40A40090UK	Realtek USB Ethernet subsystem
USB 3.0 Ethernet adapter (https://support.lenovo.com/hk/en/solutions/pd029741)	4X90E51405	Realtek USB Ethernet subsystem
The OneLink+ to RJ45 adapter (http://www3.lenovo.com/hk/en/accessories/cables-and-adapters/adapters/CABLE-BO-TP-OneLink%2B-to-RJ45-Adapter/p/4X90K06975)	4X90K06975	Intel Ethernet Adapter

Reference:

Latest X1 Carbon BIOS Hangs After Driver Installation Reboot in SCCM OSD / Will Not Join The Domain

https://forums.lenovo.com/t5/Enterprise-Client-Management/Latest-X1-Carbon-BIOS-Hangs-After-Driver-Installation-Reboot-in/m-p/3620603

Lenovo X1 Carbon Gen 4 LAN Type