Meet Chromecast Ultra. Stunning picture. Speedy streaming. Stream entertainment to your 4K Ultra HD & HDR or 1080P HDTV in striking detail, stronger processing power for faster streaming than any other Chromecast device, and an optional built-in Ethernet adapter make Chromecast Ultra a great choice for premium viewing experiences. No 4K TV? No problem. Chromecast Ultra automatically optimizes for the maximum resolution your TV can deliver. You can use your phone, tablet, or laptop to play, pause, and adjust the volume on entertainment you stream to your TV.