By The Targus DocKtor The Dell Venue™ 8 Pro is $249. Indeed, this little PC and it is a real PC-runs Windows®8.1 Pro, not Windows RT™, or like an iPad®, or like a Chromebook™.
When I first started using a universal dock even I, the DocTar, had trouble getting my head around the difference between using an old fangled snap-in proprietary dock (sometimes called a "port replicator" - example below) and using a "universal dock".
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.