This is the DUEX Float: a portable stacked laptop monitor that doubles your screen space, allowing you to get more done. It is a 15.6″ touchscreen monitor with a built-in kickstand and 3 viewing modes. The Float can serve an independent display.
The DUEX Float has two USB-C ports with pass-through charging. It also has a mini HDMI port for laptops and gaming. You can use this display with macOS, Windows, Android, and Chrome OS. Like what you see? You can find this project on Kickstarter.