Thunderbolt to Gigabit Ethernet Adapter

The Thunderbolt to Gigabit Ethernet Adapter is an adapter dongle that was released by Apple in 2012 to allow computers with Thunderbolt 1 or 2 ports to be connected to Ethernet over cables.

Usage
The adapter includes a Thunderbolt cable and can be used to add a wired connection to Ethernet with support for up to (Gigabit) speeds. Is is also useful for the addition of a second port for use as a or for.

Alternatives
For computers that do not support Thunderbolt, another option is to use the older Apple USB Ethernet Adapter which supports up to speeds, or third-party USB-C adapters.

Articles

 * Hands-on: Apple’s Thunderbolt Gigabit Ethernet adapter by Iljitsch Van Beijnum at Ars Technica (2012-06-20)
 * How to Set Up Ethernet Link Aggregation on Your Mac at iClarified (2019-09-29)
 * Merge Ethernet connections on Mac to boost network speeds [Pro tip ] by Killian Bell at Cult of Mac (2020-07-28)