Samsung's Galaxy Note 9 has a much more useful DeX desktop mode | Engadget
Samsung Galaxy Note 9 comes with new DeX and that can be its best feature as
USB C to HDMI Adapter for Samsung DeX,Desktop Experience for Galaxy S21/S20/S20 FE/Note20/Note10/Note9/TabS7/S7+/S6,DeX Station with HDMI 4K,USB3.0,USB-C Charging,SD/TF Card Reader,Nintendo Switch : Amazon.com.au: Computers
What is Samsung DeX and What Does it Do? - Dignited