https://techcrunch.com/2018/10/09/googles-chromecast-gets-a-refresh-with-support-for-faster-wi-fi/

Google’s next-generation Chromecast device launched today – something that came as no surprise, given that Best Buy accidentally sold one to an in-store customer last month. The new streaming dongle doesn’t represent a significant update from the prior version. It’s still a round puck attached to a cable and costs $35, but now it supports faster, 5 GHz 802.11ac Wi-Fi, as had been expected.

The company chose not to focus on the Chromecast at its hardware event this morning, instead simply launching the updated device on the Google Store alongside the event itself.