Thunderbolt Ethernet Adapter

To anyone who has their MBP Retina. Can you tell me if it lists an ethernet adapter when the thunderbolt adapter is not plugged in. I was hoping that it actually does have an ethernet controller and the thunderbolt is just acting as a dongle rather than the controller actually being part of the dongle.

Reason I am asking is I am kind of quite worried about drivers and support for it on other OS's. If someone has the adapter maybe you can show me what it shows in the system profiler?