Google just announced the second generation Chromecast last week, along with the Chromecast Audio dongle. They actually started arriving at people's doorsteps on Friday. And now, iFixit has completed their teardown of the Chromecast and Chromecast Audio. With most smartphones, tablets, and now dongles, iFixit will tear them down and see what exactly is inside the new device, and sometimes we find some rather interesting tidbits in these teardowns. However, with the Chromecast and Chromecast Audio, there weren't many surprises. However, we did find out that everything is on one board. Not too surprising, given how small the Chromecast is though.
The iFixit team did indeed confirm that we have WiFi 802.11 ac included in the Chromecast and Chromecast Audio. Which Google didn't outright state in their keynote, but said "faster WiFi" which most of us figured was AC WiFi. The team also confirmed that the Chromecast only does 1080p playback, unfortunately. So no 4K streaming here on the Chromecast. That might be a good thing, considering most of our WiFi networks just can't handle the shear data that would be needed for playing 4K. Both devices are also USB powered (some TV's may not have enough power through their USB ports to charge the Chromecast though), and the HDMI cable is removable from inside the Chromecast. Not that many of us will be doing that though.
The Chromecast is available from the Google Store, Best Buy, Walmart, Staples, and Target. Although Staples is listed as "Coming Soon". It will not be available through Amazon simply because Amazon is removing all dongles and set-top boxes that do not offer Amazon Prime Instant Video on their platforms. Which include the Chromecast, and likely the Android TV set-top boxes as well. However, you can always walk into a Best Buy, Walmart or Target and pick one up pretty easily, as you could with the previous generation Chromecast. The Chromecast Audio dongle is also available at the Google Store, Best Buy, Walmart, Target and Staples. Both Chromecast models are selling for $35 each. While the Chromecast is the only one available in multiple colors, while the red and yellow are exclusive to Google's store, the black is available everywhere.