In theory it is possible that USB 3.0 hubs in displays are connected via DisplayPort to the computer. However, I've never seen that in practice.
Has someone experience with this or can test this?
I am looking into displays like the x34 predator, but I am worried that the USB 3.0 connectivity is only via the extra USB cable and not over DisplayPort.
For me, it would be a nice setup when coming home from work: plug only 1 cable (DisplayPort) into my laptop and use the external mouse and keyboard over DisplayPort.
This would be a clean work setup, at least in theory.
Here is a sketch of what I had in mind (notice my MVP photoshop skills):