Chromecast Ultra is an easy and predictable upgrade and a device that makes complete sense supporting the latest formats for video streaming to your TV,58mm diameter x 14mm; 47g weight,HDMI male out, Micro USB power in,Mains power required for 4K content.Wi-Fi to 802.11ac,Wired Ethernet connection option,Supports Android (4.1+), iOS (8.0+), Mac OS X (10.9+), Windows (7+).Stream up to 4K Ultra HD HDR picture quality over your WiFi network with Chromecast Ultra, a streaming device that plugs into your TVs HDMI port. Chromecast Ultra provides fast, reliable performance with minimal buffering and smoother streaming. Use your iPhone, iPad, Android device, or laptop to stream thousands of Cast-enabled apps.