https://www.developer-tech.com/news/2018/may/09/googles-4k-android-tv-dongle-available-devs-now/

While Google's Android OS has become a giant in the smartphone industry, it's failed to catch on in other form factors. Android TV is one case in point; announced in 2014, the OS for TVs and set top boxes has remained a bit player in the Android ecosystem. This year, Google is trying to get more app makers to target the platform with a particularly juicy hook: an Android TV dongle running Android P, offered exclusively to developers.

This 4K-capable Android TV device was actually spotted by eagle-eyed news outfit Ausdroid last month when it passed through the FCC in the United States. At that time, Android Central and other sites speculated that the device might be offered for public sale, along the same lines as the popular Chromecast and Chromecast Ultra dongles. However, now it appears that the device will be available exclusively to developers, as Google leaves the hard work of building consumer-ready devices to its plethora of hardware partners.