Gigabyte claims the Aorus RTX 2080 Ti Gaming Box offers "The World's 1st Water-Cooling External Graphics". Along with being the first of its kind, Gigabyte also waxes lyrical about the Aorus RTX 2080 Ti Gaming Box for its power, noise emissions, and compact size. The device weighs less than 4 kg (8.8 lbs) and should help turn a regular ultrabook into a gaming meteor.
https://www.notebookcheck.net/Gigabyte-reveals-the-Aorus-RTX-2080-Ti-Gaming-Box-The-world-s-first-water-cooled-external-graphics-solution.441128.0.html
Stupid idea. Eliminates the mobility completely, increasing size and weight. Why not get an itx desktop?
If you want an ITX desktop, you can only have at best a RTX 2070
you would be bandwidth throttled before you can use the full 2080ti performance anyway