Why does the Google Chromecast need external (USB) power? Can't it draw power from the HDMI port like any plug and play USB device? - Quora
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8 Inch USB Cable and Bonus Chromecast eBook. Designed to Power Your Google Chromecast HDMI Streaming Media Player from Your TV USB Port - Exinoz
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How Can Chromecast Connect To Your Friend's Phones Without Using WiFi? Ultrasonic Sounds | TechCrunch
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