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Old 07-31-2020, 07:14 AM   #1
lowieken
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Join Date: Jul 2020
Posts: 3
Default dual 4K@30fps on USB 5Gbps. How is that possible?

Hello,

I have a rather general question on DisplayLink docks and bandwidth usage.
For example, the HP Universal USB C/A dock. This supports 2 x 4K display (even 3 on TB hosts). However this dock has a USB 3.2 Gen 1 host interface (5 Gbps).
In my calculations I find that one 4K@30fps display takes up around 6 Gbps uncompressed.
So my question is: how is it possible then to have 2 x 4K@30fps over a 5Gbps host interface?
What am I missing?

Cheers

Kris
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