The new Chromecast also support 802.11ac and 5Ghz bands (thank you Google) and the company says there are now three different antennas for optimized streaming compared to the one the original Chromecast had.
Google also boasted that there are now thousands of apps available that support casting, and Google has revamped the actual Chromecast app, adding a discovery section that searches for what is hot in the streaming apps you have downloaded on your devices.
The search giant says they have sold 20 million units of the original since its launch, quite a success for an experimental product, and the second-generation dongle will keep the original's $35 price tag so Google is hoping the strong sales will continue.
Check it out here: Google Play
Bit of an expensive upgrade for a bit of extra cord and 802.11ac 5ghz and a round design methinks.
I'll stick to my current Chromecast I.