Multiple video capture devices possible?

[camodue_]

I try to add 2 USB HDMI video capture devices but only see one option in the properties although sometimes I see two ("USB") with one greyed out

They are connected to the laptop's USB C port via a USB C hub. I only have 2 USB C ports on the laptop
I plug in the power adapter in one and the USB C hub (with the 2 video sources) in the other.

Is this possible at all? Why can't I select both sources

 

[khaver]

If they are the same model, it could be that OBS can't distinguish between them. It could also be a limitation in USB bandwidth. Try plugging one into the hub and the other in the free port on the laptop.

 

[camodue_]

Thanks for the tip. Turns out there's an issue with the hub. When I plug in both USB devices to the USB C ports on the laptop directly they both work in OBS. Now I have to buy another adapter to plug in the USB C to a USB port...

Even though I have a solution the question remains whether it is possible to use USB hubs (just not mine) or it's not possible at all to connect devices via hubs