Nest Wifi Pro is up to 2x faster than Wi-Fi 6, the three pack covers up to 6600 square feet to create a mesh network. Tried it out for our house but ended up using a different solution. Good condition, comes in original box. Uses 2.4 GHz, 5 GHz, and 6 GHz bands.
Original store page:
https://www.amazon.com/Google-Nest-WiFi-Pro-Reliable/dp/B0BCQSYPZB
Note you will need an android smartphone to configure and use them.