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Michael Tsai – Blog – Confusing USB 3.2 Branding



Juli Clover (via Marco Arment ):

Going forward, USB 3.1 Gen 1 (transfer rates up to 5Gb / s), which used to be USB 3.0 before a separate rebranding, will call USB 3.2 Gen 1, while USB 3.1 Gen 2 (transfer rates up to 10Gb / s) now will be known as USB 3.2 Gen 2.

What used to be considered USB 3.2 will now be USB 3.2 Gen 2×2 because if offering twice the throughput rate of USB 3.1 Gen 2, now USB 3.2 Gen 2. If it sounds confusing to you, you're not alone.

Peter Bright (Hacker News):

What this marking meant is that many manufacturers say that a device supports "USB 3.1

", even though it is just a "USB 3.1 Gen 1" device running at 5Gb / s. Meanwhile, other manufacturers make the sensible thing: They use "USB 3.0" to denote 5Gb / s devices and reserve "USB 3.1" for 10Gb / s parts.

[…]

The good part of all this is that USB 3.2 can mean 5, 10 or 20Gbps. You can bet that there will be manufacturers who will exploit the confusion where and when they can.

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