During Google's #madebygoogle event (embedded below), the company introduced a number of new pieces of hardware including a new Chromecast. The Chromecast Ultra is aimed at owners of 4K televisions and supports both 4K Ultra HD and HDR content from the likes of Netflix, YouTube, and other apps. Like previous models, the Chromecast takes input from Android, iOS, Mac OSX, and Windows devices that "cast" media to the TV. Additionally, it can be paired with Google Home where users can use voice commands such as "Ok, Google. Play the sneezing panda video on my TV."
The Chromecast Ultra is a small circular puck with a Micro USB port and a short flexible flat HDMI cable that is permanently attached to the device. The Micro USB port is used for both power and data. One neat feature about the new Chromecast Ultra is that the power adpater has an Ethernet port on it so that users can hook the streaming device up to their wired network for better performance (important for streaming 4K content). Not to worry if you rely on WiFi though because it does support dual band 802.11ac.
Google has not yet revealed what hardware is under the hood of its new 4k capable Chromecast, unfortunately. They did release pricing information though: the Chromecast Ultra will be $69 and is "coming soon". If you are interested you can sign up to be notified when it becomes available.