The 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.
What's in the Box?
Apple Thunderbolt to Gigabit Ethernet Adapter with built-in Thunderbolt cable
Thunderbolt technology supports fast data transfers with two independent channels of 10 Gbps each. And Thunderbolt 2 technology can bond the two channels for a super-fast 20 Gbps. Use this cable to connect Thunderbolt-enabled devices to the Thunderbolt or Thunderbolt 2 port on your Mac.
The Apple Thunderbolt Cable lets you connect two Thunderbolt-equipped Mac computers in target disk mode, network two Mac computers with OS X Mavericks or use your iMac as a display for a MacBook Pro or MacBook Air.