Review on 🖥️ MacBook Pro Dual Monitor Docking Station - 14 in 2 Triple Display USB C Dock with 2 HDMI, 18W PD Charging, 4 USB A, 100W AC Power Adapter - for MacBook Pro/Air Thunderbolt 3/4, Mac OS, Type C Laptop by Steve Hauck

This only outputs 4k@60Hz through one of the ports (and crashes from time to time). The other Port never outputs 4K@60Hz *If you use this port alone it will not sync properly if you set it to 4k@60Hz (fails) *If you use it alongside a working one you will only get 4K @30hz as an option I still haven't found a docking device (not even a two wire one like this) that can play 4k @ 60hz on 2 screens at the same time I have to buy 2 keys to make this work.