Comment by masklinn

4 years ago

According to the wiki table (https://en.wikipedia.org/wiki/USB4#Support_of_data_transfer_...), it's "optional":

* "USB4 20 Gbit/s Transport" (= USB4 20Gbps = USB4 Gen 2x2) is required for host to support

* "USB4 40 Gbit/s Transport" (= USB4 40Gbps = USB4 Gen 3x2) is not

Also USB4 apparently only requires support for tunneling "SuperSpeed USB 10Gbps" (USB 3.2 Gen 2×1), "SuperSpeed USB 20Gbps" (USB 3.2 Gen 2x2) is optional.

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masklinn

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