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Small rectangular circuit board with a nine-pin female header on one side and a twenty-pin USB Type-E female connector on the other

SMUGDESK

SMUGDESK USB 2.0 to USB 3.2 Gen 1 Header Adapter 9Pin to Type-E (A-Key)

SKU CH-QR5Y-MJP95

Converts a motherboard USB 2.0 9-pin header to a USB 3.2 Gen 1 Type-E (A-Key) connector for front-panel USB-C ports, limited to 480 Mbps

  • Adds USB-C front-panel access to boards lacking a Type-E header
  • Plug-and-play installation with no driver required
  • Compact 0.94 x 0.51 x 0.19 in form factor fits tight spaces
  • Supports up to 480 Mbps transfer limited by USB 2.0 9-pin header
  • Includes one 9-pin to 20-pin A-Key adapter for immediate use

USB 2.0 to USB 3.2 Gen 1 Header Adapter

This adapter connects a PC case front-panel USB-C port to a motherboard USB 2.0 9-pin header. It is intended for builders whose motherboard lacks a native Type-E header but who want to use the case's USB-C connector. The device converts the internal 20-pin A-Key interface to the older 9-pin standard. No driver installation is required for operation.

Sustained transfer speed limited to USB 2.0

Data throughput is capped at 480 Mbps because the link runs over a USB 2.0 9-pin header. The front-panel USB-C port will not reach USB 3.1 or 3.2 Gen 1 speeds regardless of the cable or device attached. This ceiling applies continuously during large file moves or backups. The adapter does not add bandwidth beyond the header specification.

Check motherboard header and case connector

Verify that the motherboard provides a standard USB 2.0 9-pin header and that the case front panel uses a 20-pin A-Key Type-E plug. The adapter measures .94 by .51 by .19 inches, so confirm clearance around the header area. Builders needing full USB 3.2 Gen 1 performance should not use this adapter.

Highlights

  • Adds USB-C front-panel access to boards lacking a Type-E header
  • Plug-and-play installation with no driver required
  • Compact 0.94 x 0.51 x 0.19 in form factor fits tight spaces
  • Supports up to 480 Mbps transfer limited by USB 2.0 9-pin header
  • Includes one 9-pin to 20-pin A-Key adapter for immediate use

Specifications

No published specifications for this item yet.

Questions about this item

Does the adapter add any heat or power draw when the front-panel USB-C port runs all day?

The adapter is a passive header converter with no active circuitry, so it adds no measurable heat or power draw beyond the USB 2.0 9-pin header's normal supply.

What must the motherboard already have for this adapter to work?

A standard USB 2.0 9-pin internal header on the motherboard is required; the adapter plugs into that header and presents a USB 3.1/3.2 Type-E (A-Key) socket for the case cable.

If I keep an older case with only a USB 2.0 front-panel header, will this adapter let me use its new USB-C port?

No — this adapter converts a motherboard USB 2.0 9-pin header to a Type-E socket; it does not convert a case's USB 2.0 header to USB-C.

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