Ultimately, people need to stop referring to the version numbers of the USB standard documents when referring to various data rates. The USB forum itself tells people to not do that and instead use buzzwords that directly describe the data rate.
According to their current marketing name guidance document, device makers should call their ports:
- USB 80Gbps
- USB 40Gbps
- USB 20Gbps
- USB 10Gbps
- USB 5Gbps
- Hi-Speed USB
depending on the ports’ actual capabilities.