Used Apple Thunderbolt to Gigabit Ethernet Adapter
Lets you easily connect to a high-performance Gigabit Ethernet network. Small and compact, it connects to the Thunderbolt port on your Mac computer and provides an RJ-45 port that supports 10/100/1000BASE-T networks
Requires: Thunderbolt 1/2 equipped Mac computer (can also be used on Thunderbolt 3 Macs with an additional TB3-TB2 adapter)
Fully tested working product.
Part numbers: MD463ZM/A, A1433