> That's the whole point of this submission. M1 macs don't support USB 3.1, only USB 3.0. Why? because they patently don't support the transfer speeds made poss

> That's the whole point of this submission. M1 macs don't support USB 3.1, only USB 3.0. Why? because they patently don't support the transfer speeds made possible by the new data transfer mode introduced in USB 3.1. M1 macs support USB4. USB specs define multiple transmission modes and speeds from port to port over a cable that one can support. They define alt modes you can support. Separately there are conformances and marks. E.g. if your cable supports transfer according to USB 3.2 Gen 2x2 in our lab, you can _market it_ as Superspeed 20Gbps, put the logo on the connectors, etc. So the argument would be that Apple M1 doesn’t support Superspeed 10Gbps. Which, as an aside, I’ll need a lot more than one person testing with a single (likely non-conformant) cable before I will believe.