Google - Chromecast Ultraの通販 by SanDisk's shop|グーグルならラクマ
This is probably Google's 4K Chromecast “Ultra” | TechCrunch
Chromecast Ultra delivers 4K and HDR content, but is that enough? [Updated] | Ars Technica
Figured out how to update the Chromecast ultra firmware (i think). I joined the preview program in the settings, then pulled power and started again a bunch of times. Now I got
Chromecast Ultra Stuck at Fetching Update 0% - Fixed — Dan Letsinger