After making sure my Lenovo X1 Carbon had updated Intel USB 3.0 eXtensible Host Controller and Intel HD Graphics 4000 drivers, I still couldn't get my Targus Universal Dock to connect to USB 3.0 - even after using the X1 Carbon's USB 3.0 port! In fact, the Intel USB 3.0 eXtensible Host Controller did not show in the Device Manager.
During the initial setup and installation of any Universal USB 3.0 Docking Station it's critical to update your laptop's (or Windows 8 Pro tablet's) USB 3.0 Host Controller