Notice that Thunderbolt 1/2 are full duplex. With Thunderbolt 2 you get an independent 20 Gbit/s channel in each direction. http://www.anandtech.com/show/7049/

Notice that Thunderbolt 1/2 are full duplex. With Thunderbolt 2 you get an independent 20 Gbit/s channel in each direction. http://www.anandtech.com/show/7049/intel-thunderbolt-2-everything-you-need-to-know http://www.anandtech.com/show/7049/intel-thunderbolt-2-every...