https://arstechnica.com/gadgets/2021/01/wi-fi-6e-arrives-at-ces-2021/

Wi-Fi 6E is very slowly coming to a product near you. The Wi-Fi Alliance started certifying devices on January 7, and CES 2021 saw plenty of product announcements related to the Wi-Fi 6E rollout.

Wi-Fi 6E, if you haven't heard, is a new standard for Wi-Fi that was approved by the FCC last year. While Wi-Fi 6 (no "e," aka 802.11ax) is a bunch of technical improvements mostly aimed at more efficient usage of existing spectrum, Wi-Fi 6E is all about expanding Wi-Fi to a newly freed-up chunk of spectrum. Previously, Wi-Fi only worked on the 2.4Ghz and 5GHz spectrum, but Wi-Fi 6E uses the 6GHz spectrum. In the United States, 6E has a huge chunk of continuous spectrum—1200MHz. Previously, 5GHz only offered 140MHz of useful, non-DFS spectrum, and 2.4 GHz only had 70MHz of very crowded spectrum, which is vulnerable to running microwaves and other interference.