Viewsonic EP5542 / Digital ePoster Kiosk 55

Quick overview from the supplier:

ViewSonic EP5542, Digital ePoster Kiosk, 55" (3840x2160), Portrait Mode Only, 16/7, 400nits, 1300:1, 2GB RAM / 16GB Storage, HDMI x 3, DisplayPort, LAN (RJ-45), USB-A x 3, Audio Line-in/Out, Android OS, Speakers 2 x 10W, Black