Hello and welcome,
Dual 4Kp60 + Ethernet fits comfortably in 5Gbps and there is no benefit in connecting this DisplayLink chip to a 10G input. We fit 1080p60 on USB2 with an older codec...
The only reason I would see for 10Gbps is if you were extensively using external Flash or hard drives, but I am not convinced the docking station you are using has 10G USB hubs inside, you'd need to check with the manufacturer. If it has 5G hubs, then connecting to a 10/20G port won't change a thing.
Our algorithm is adaptive on computing and link bandwidth as well as content type. Like a famous soda brand, our recipe is trade secret.
Unlike a DP/TB link which always sends all the display content 60 times per second, we optimise the content sent to the dock and we create the full bandwidth video signal in the dock, also allowing us to get the best interoperability. We don't tend to lose frames, but when we sense bandwidth is tight, we can adapt our encoding to keep low latency.
In that cable, DisplayLink moves real, standard, USB packets. That is why you can daisy-chain the devices to extend your setup.
DisplayLink is media agnostic, so USB isn't the only way: HTC Vive wireless VR headset relies on DisplayLink technology, where both low latency and high quality graphics are critically important.
Kind regards,
Alban
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