M1 Thunderbolt ports don’t fully support USB 3.1 Gen 2

Re:M1 Thunderbolt ports don’t fully support USB 3.1 Gen 2 by Dylan16807 on Monday April 18, 2022 @06:45AM (#31069170)

The generations start with USB 3.0.

But for bonus confusion they don't refer to connection speed. They refer to single lane speed, and a connection can have 1 or 2 lanes.

Gen 1 is 5Gbps, gen 2 is 10Gbps. Gen 2x2, sigh, is 20Gbps total. If they weren't trying to obfuscate things, those would simply be 3.0, 3.1 and 3.2.

There's also Gen 1x2 in theory, but I've never seen mention of anything using it.

And then after USB 3.2 you have USB4[sic] which adds Gen 3 and 3x2.

[ Parent | on HN ]

Re:M1 Thunderbolt ports don’t fully support USB 3.1 Gen 2 by floatboth on Monday April 18, 2022 @07:46AM (#31069491)

So it's basically like PCIe now.

[ Parent | on HN ]

Re:M1 Thunderbolt ports don’t fully support USB 3.1 Gen 2 by Dylan16807 on Monday April 18, 2022 @03:01PM (#31074979)

Like that, but also they keep renaming things. And when it's only two lanes max and any faster device will support two lanes, there's no reason to put lanes in the name.

[ Parent | on HN ]