https://www.gamespot.com/articles/new-white-xbox-one-x-fallout-76-bundle-announced-p/1100-6461466/

Microsoft has announced that a special white version of the Xbox One X will be available for the first time, along with a pair of white hardware accessories. The console will come as part of the Xbox One X Robot White Special Edition Fallout 76 Bundle. The console will come with a matching white wireless controller, 1 TB of onboard storage, and a digital copy of Fallout 76. It will be available November 14, but you can pre-order one now from the Microsoft Store or GameStop for $500.

If you order it from GameStop, you can actually pick it up a month early, on October 15. The digital copy of Fallout 76 won't be playable until the game launches on November 14, but you will get access to the Fallout 76 beta that's scheduled to go live sometime in October.