Alias resolution

USB 19-pin header vs Key-A front-panel header

Resolve common internal USB front-panel names to the separate 19-position and Key-A connector records.

Map the name to a canonical record

Canonical record	Family	Names indexed on that record
USB 3.0 front-panel 19-pin internal connector	USB	USB 3.0 19-pin header · USB 3 front panel header · 19-pin USB header · internal USB 3 header
USB 3.1 front-panel Key-A 20-pin header	USB	USB Key-A header · USB 3.1 front panel header · 20-pin Key-A · Type-C front panel header

Useful side-by-side distinctions

USB 3.0 19-pin versus USB Key-A 20-pin front-panel headersWhich motherboard front-panel USB header form does the board and case cable specify? Connector-family identity is only the first layer; implementation-specific electrical and protocol requirements still need exact documentation.

Name boundary.

Similar internal-header terminology is not evidence that the physical keying, contact assignment or intended front-panel connection is interchangeable.

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Discovery is not a compatibility verdict.

These discovery surfaces route and reorganize facts already represented in the atlas. They do not add electrical ratings, universal pinouts, measured tolerances, exact-device support, wiring approval or an end-to-end compatibility result.