I've tried several docks and cables with no success until I've found this article: https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-video-through-usb

I've tried several docks and cables with no success until I've found this article: https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-video-through-usb-c-hub/ https://www.bigmessowires.com/2019/05/19/explaining-4k-60hz-... The recommended CableMatters dock solved the 4k60Hz issue with USB2.0 pheripherals connected (mouse, kb).