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Green circuit board with two blue USB 3.0 ports and a 20 or 19 pin header

Fervit

Fervit Dual USB 3.0 A Female to Motherboard 20/19 Pin Adapter

SKU CH-FX2X-DNK7K

Adds two USB 3.0 Type-A ports to a motherboard using a 20- or 19-pin internal header

  • Adds two USB 3.0 Type-A ports via internal 20/19-pin header
  • Flat PCBA design fits tight motherboard layouts
  • Converts internal 20-pin USB 3.0 header to external ports
  • Supports USB 3.0 speeds for connected peripherals
  • Dual female connectors enable simultaneous device connections

Dual USB 3.0 internal adapter

This Fervit adapter adds two USB 3.0 Type-A ports to a desktop by plugging into a motherboard 20-pin or 19-pin internal header. It is aimed at builders who need front-panel or bracket-mounted USB 3.0 connections without using rear I/O slots. The flat PCB design keeps the assembly slim for tight chassis routing.

Flat PCB build and header fit

The board uses a flat-type PCBA that sits close to the motherboard surface, reducing clearance issues in compact cases. Dual female Type-A connectors accept standard USB 3.0 plugs directly, so external drives, docks or peripherals attach without extra cables. The 20-pin and 19-pin compatibility covers most common internal USB 3.0 header layouts.

Upgrades front-panel USB 2.0 headers

This adapter replaces a legacy USB 2.0 front-panel header when the motherboard provides a spare 20-pin or 19-pin USB 3.0 header. The jump is worthwhile for users moving large files to external SSDs or running high-bandwidth peripherals who need the 3.0 throughput. It does not add headers where none exist on the board.

Highlights

  • Adds two USB 3.0 Type-A ports via internal 20/19-pin header
  • Flat PCBA design fits tight motherboard layouts
  • Converts internal 20-pin USB 3.0 header to external ports
  • Supports USB 3.0 speeds for connected peripherals
  • Dual female connectors enable simultaneous device connections

Specifications

BrandFervit

Questions about this item

What USB standard does the 20/19-pin header support, and what speed does it cap at?

The adapter carries USB 3.0 signals from the 20-pin or 19-pin motherboard header to two Type-A ports, delivering up to 5 Gbps per port.

What clearance and bracket style does the flat PCBA need to fit a rear I/O slot?

The flat board assembly mounts in a standard full-height expansion slot; the dual Type-A ports protrude through the slot opening with no extra bracket hardware required.

How is the adapter installed, and which header orientation mistake is common?

Plug the 20-pin or 19-pin connector into the motherboard's internal USB 3.0 header, aligning the keyed notch; the frequent error is forcing the 19-pin plug onto a 20-pin header upside down, bending pins.

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