Chromecast with HDMI connection, includes AC adapter and USB cable. - Model: Chromecast - Accessories: AC adapter, USB cable - Connection type: HDMI Google Cast is a feature that connects your TV to the internet, allowing you to play content from your smartphone or tablet on the big screen. The main ways to use it are to connect a device like Chromecast to your TV and tap the cast icon from supported apps like YouTube to display on the TV, or to use the "cast screen" function to display your entire smartphone screen on the TV. This is the unit only, without the box, but it works perfectly. Please understand that this is a used item, so only those who understand this are welcome to purchase. Thank you for viewing.