This is a Thunderbolt hub that breaks out 1 Thunderbolt port into: Ethernet, Audio, FireWire 800, 3x USB, and a pass-thru Thunderbolt//DisplayPort. That means 1 cable off your MacBook Pro other than power when you're at your desk. The rest can remain plugged into this hub. When this ships I'll finally consider a new MBP. Hate cables.