The Apple Thunderbolt to Gigabit Ethernet Adapter MD463ZM/A A1433 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.

Please note this supports the old-style Thunderbolt port, not newer USB-C style models.