8K Crystal-clear Streaming Dock Station
USB C docking station HDMI2 port supports up to 8K@30Hz in Windows, and up to 4K@60Hz in Mac OS.Connect via all three simultaneously to enjoy crystal-clear streaming or mirroring across 3 displays.

UGREEN Docking Station Expansion Mode and Mirror Mode ,Increase Your Display Options
Stop wasting time switching back and forth between programs or documents–extend your display across multiple monitors via any 3 of displays for an easier and more productive experience.

mac OS support: AABB ABCD AACC ABBC ABBB AAAA

Windows support: AABB ABCD AACC ABBC