StarTech.com Thunderbolt to Gigabit Ethernet plus USB 3.0 - Thunderbolt Adapter - Add a Gigabit Ethernet port and a USB 3.0 hub port to your Thunderbolt-equipped MacBook or Ultrabook - Thunderbolt to Gigabit Ethernet + USB 3.0 - Thunderbolt Adapter

Supports Thunderbolt data rates of up to 10Gbps, with 2 dedicated PCI Express lanes (one per port) Silver sandblast finish with rubberized grips, matching Apple? MacBooks Bus-powered - no external power required Plug-and-play installation on supported operating systems using native drivers 1 x Gigabit Ethernet & 1 x USB 3.0 port (5Gbps), through a Thunderbolt connection Compact and durable case design with an integrated Thunderbolt cable, for maximum portability USB 3.0 port supports UASP and is backward compatible with USB 2.0 Ethernet port supports 10/100/1000Mbps connections, Full-Duplex operation, Jumbo Frames (up to 9.6K)