At its hardware launch event in San Francisco today, Google unveiled its new Chromecast Ultra, a streaming dongle that pairs with your phone and plugs into your TV to deliver 4K video content over the Web. The successor to last year’s second-gen Chromecast also support high dynamic range (HDR) and Dolby Vision output, so you should see improved contrast and lighting effects in videos. The new device sports a hockey-puck-like body similar to the previous version, but does away with the Chrome branding. Plus, it has an ethernet port integrated into the power adaptor for increased connectivity options. Google says…

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