Ugreen Revodock Pro 209 Dual Display does not work

[Kirchdorf]

Hi everyone

I now bought this docking station: Link

I want to drive 2 Monitors:
- Apple Cinema display 2k
- Apple Studio display 5k

But the docking station and software just recognize the Cinema Display. Could this be, because the Studio display is 5k and the hardware just supports 4k?

I tried to run it via HDMI and DisplayPort Adapter.

Edit: I found a work around - If I plug in the Studio Display directly and the docking station as well, I can drive all three monitors. So the internal und 2 external monitors.