Appendix B. Notice for USB connector name update
The USB Implementers Forum published a revision of the guideline for USB connector names in September,
2022. Lenovo follows the revised guideline and updates USB connector names accordingly. You can refer to
the table below for naming update details.
Current name Previous name
USB-A connector (Hi-Speed USB) USB-A 2.0 connector
USB-A connector (USB 5Gbps) USB-A 3.2 Gen 1 connector
USB-A connector (USB 10Gbps) USB-A 3.2 Gen 2 connector
USB-A connector (USB 5Gbps, Always On USB) Always on USB-A 3.2 Gen 1 connector
USB-A connector (USB 10Gbps, Always On USB) Always on USB-A 3.2 Gen 2 connector
USB-C connector (USB 5Gbps) USB-C (3.2 Gen 1) connector
USB-C connector (USB 10Gbps) USB-C (3.2 Gen 2) connector
USB-C connector (USB 20Gbps) USB 3.2 Gen 2x2
USB-C connector (USB4 20Gbps) USB 4 Gen 2x2
USB-C connector (USB4 40Gbps) USB-C (USB 4) connector
USB-C connector (Thunderbolt 3) USB-C (Thunderbolt 3) connector
USB-C connector (Thunderbolt 4) USB-C (Thunderbolt 4) connector
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