This listing is for the Google Chromecast Ultra power adapter that comes with the box and a charger cord. Product details Enjoy ultra-high-resolution content with the Chromecast Ultra from Google. This device plugs into your TV or home theater receiver's HDMI port, enabling you to stream media from your mobile device or the web. It supports video with 4K Ultra HD (3840 × 2160) resolution for use with compatible displays. Google Chromecast Ultra 4K HD HDR Video Media Streamer Player Retail price for both over $110!