The free Stadia hardware includes a Chromecast Ultra and controller.
https://twitter.com/assassinscreed/status/1445056367014957062
Google will give you free Stadia hardware if you buy a game. The free bundle includes a Chromecast Ultra and Stadia controller. Details: https://t.co/5IAYNEkJ61 pic.twitter.com/RwlIpgxyeq
— Tom Warren (@tomwarren) October 5, 2021
SOURCE: The Verge