My pick for product of the year. The Sonnet Twin gives you a pair of 10 Gbit Ethernet ports on your Thunderbolt2 equipped Mac or PC. Plug it in and go to using it. A home run for Sonnet. Two Thunderbolt2 ports and two RJ45 connections. Includes .5m Thunderbolt cable.
Mac 10.8.5+ or Windows7, 8, '08/'12 Server
Cat 6 cable length limit: 55m
Cat 6e cable length limit: 100m
Manufacturer warranty 1 year