Objective:

Ethernet Connectivity via Thunderbolt

Pete's Pick

$29 Apple MD463LL/A Thunderbolt to Gigabit Ethernet Adapter

Discussion

This is pretty niche.

If you are running a new-ish computer with Thunderbolt 3 or Thunderbolt 4 (USB-C / USB Type-C) ports this is not the device for you. There are better USB-C Ethernet adaptors available.

Supports Macs with Thunderbolt or Thunderbolt2 ports running Mac OS X 10.7.4 and later.