The new GTX 1080 external graphics solution for laptops comes in a small-form factor and lightweight enclosure. It can support up to 5 monitors plus three USB peripherals and comes with Thunderbolt 3 plug-and-play connection. MSRP is expected to be around US$750.
https://www.notebookcheck.net/Gigabyte-upgrades-the-AORUS-Gaming-Box-for-laptops-with-GTX-1080-cards.252640.0.html
This eGPU box (http://graphicscardhub.com/egpu-external-graphics-card/) is great way to enhance or upgrade your laptop graphics.