USB Standard

USB 1.x

USB 1.0 and USB 1.1 introduced the original USB architecture with Low-Speed and Full-Speed data transfer.

Characteristics · Articles

USB 1.x characteristics

Compare its revisions, data rates, connectors, and current status.

RevisionsUSB 1.0 and USB 1.1
Low-Speed1.5 Mbps
Full-Speed12 Mbps
Common connectorsUSB Standard-A and Standard-B
USB-C supportNo; USB Type-C was introduced much later
Current statusLegacy, with concepts and compatibility carried forward by later USB generations

Sources: USB-IF USB 2.0 Specification, USB-IF Cables and Connectors, and USB-IF USB 2.0 Electrical Compliance Test Specification.

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