Since the new Chromecast is still limited to 1080p, though, it leaves room on the market for the 4K Chromecast Ultra. But now that both Roku and Amazon have 4K-equipped streaming boxes for $40 and $50, respectively, we're waiting for the Ultra to fall in line price-wise. The new device will be available starting tomorrow.

Update 12:30 PM ET: It turns out the second-generation Chromecast also supported 5GHz WiFi. We've updated the post to reflect that.

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