PC World (US online) - USB 3.2's horrible new branding scheme may create confusion for PC buyers
It's hard to believe that USB branding has become more confusing, but it has.
Mark Hachman on 27 February, 2019
The USB standard has just gotten even more confusing for end users. ...
It's hard to sum it all up, but we'll give it a try.
- USB 3.2 Gen 1 (previously referred to as USB 3.0, or formally as USB 3.1 Gen 1) has a 5Gbps transfer rate and is officially known by the marketing name SuperSpeed USB.
- USB 3.2 Gen 2 (previously referred to as USB 3.1, or formally as USB 3.1 Gen 2) has a 10Gbps transfer rate and is now officially known as SuperSpeed USB 10Gbps.
- USB 3.2 Gen 2x2 (the latest spec) has a 20Gbps transfer rate and is now officially known as SuperSpeed USB 20Gbps.
Note, too, that these new specs refer only to throughput speed, not to the physical USB cable or port.
We're still in the middle of a gradual transition from USB-A to USB-C physical connectors, but that's a separate issue.
The USB 3.2 Specification Language Usage Guidelines from USB-IF can be downloaded here