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Short black adapter with 19-pin header and USB-C 20-pin A-key socket

BUCIER

BUCIER USB 3.0 19-Pin Header to USB 3.1/3.2 Type-C 20-Pin A-Key Front Panel Adapter

SKU CH-7WC8-0R65J

Connects a motherboard 19-pin USB 3.0 header to a front-panel 20-pin USB-C A-key connector without increasing speed to 10 Gb/s

  • Connector TypeLighting Connector to USB A
  • Adds USB-C front-panel access via existing 19-pin header
  • Supports USB 3.0 and 3.1 Gen 2 motherboard headers
  • A-Key 20-pin female connector fits standard front-panel ports
  • No speed conversion from 5 Gb/s to 10 Gb/s
  • Simple internal adapter for newer USB-C cases

Internal USB-C front-panel adapter

This adapter connects a motherboard USB 3.0 19-pin header to a front-panel USB 3.1/3.2 Type-C 20-pin A-Key connector. It enables USB-C access on cases with a compatible front port without requiring a newer motherboard. The product is suited for PC builders adding a modern front-panel port to an existing platform.

Check your motherboard header and case port

Verify that your motherboard provides a USB 3.0 internal 19-pin male header before ordering. Confirm the front-panel connector on your case is a USB 3.1/3.2 Type-C 20-pin A-Key female header. This adapter does not convert the 5 Gb/s header bandwidth to 10 Gb/s.

Sustained throughput matches header speed

Under continuous load the link runs at the 5 Gb/s rate of the source 19-pin header rather than the 10 Gb/s potential of the Type-C connector. Thermal throttling is not a factor for this passive cable assembly. Performance remains stable for long file transfers or device charging sessions.

Highlights

  • Adds USB-C front-panel access via existing 19-pin header
  • Supports USB 3.0 and 3.1 Gen 2 motherboard headers
  • A-Key 20-pin female connector fits standard front-panel ports
  • No speed conversion from 5 Gb/s to 10 Gb/s
  • Simple internal adapter for newer USB-C cases

Specifications

Connector TypeLighting Connector to USB A

Questions about this item

Does the adapter include a USB 3.0 19-pin header cable or must I buy one separately?

The adapter connects a motherboard USB 3.0 19-pin header to a front-panel USB 3.1/3.2 Type-C 20-pin A-Key port; the motherboard header cable is not included and must be sourced separately.

Which front-panel header version does the 20-pin A-Key connector match?

The 20-pin A-Key female header is designed for front-panel USB 3.1/3.2 Type-C connectors that use the A-Key pinout.

Will the adapter raise a 5 Gb/s motherboard header to 10 Gb/s at the Type-C port?

No, the adapter does not convert the 5 Gb/s header bandwidth to 10 Gb/s; the Type-C port runs at the header's native 5 Gb/s speed.

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