The DELL XPS LAPTOPs can use one of these DELL D3100 DOCKING STATIONs that will plug into the DELL LAPTOP USB 3.0 connection.
This will run multiple HD Monitors and other devices.
I'm sure other LAPTOPs can do this as well...
I have been using the DELL M90 WORKSTATION laptops doing this for years using a standard DELL DOCKING station that connects to the laptop from a large bottom connector. You just snap the laptop into the large connection and it locks in place.
I really have not had a DESKTOP computer for years now. It is so neat to always carry everything with you when you move around.
My DELL M90 is a XP-PRO operating system which is out-dated now and I have been sort of in a hold now saving up my monies to get a WIN 8 DELL Workstation laptop. I can also use the XPS docking station that would plug into the USB 3.0 port and do almost the same thing alot cheaper...
I am looking on the DELL OFF-LEASE COMPUTERS sites where you can get a real good deal on a certified high end DELL workstation laptop.
Roy Ken