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Green PCIe x4 card with two blue USB Type-A ports and silver brackets

SMUGDESK

SMUGDESK U3142A PCIe X4 USB3.1 Gen2 Data Adapter Dual 10Gbps Type-A Ports

SKU CH-VA3P-2JAKZ

PCIe X4 card adds two 10Gbps USB 3.1 Gen2 Type-A ports using ASM3142 chip with full and low-profile brackets

  • Dual 10Gbps Type-A ports transfer data simultaneously with ASM3142 chip
  • PCIe X4 card fits X4, X8 and X16 motherboard slots
  • Full-height and low-profile brackets included for standard and slim cases
  • Plug-and-play on Windows 10, 11 and Linux with USB 3.0 and 2.0 backward compatibility
  • Two independent 10Gbps channels handle high-speed external SSDs and industrial cameras

PCIe X4 USB 3.1 Gen2 Adapter

This SMUGDESK expansion card adds two 10 Gbps Type-A ports to a desktop or workstation through a PCIe X4 slot. It uses the ASMedia ASM3142 controller to deliver independent full-speed channels for each port. The board fits PCIe X4, X8 or X16 slots and ships with both full-height and low-profile brackets.

Check slot and bracket clearance

Verify the motherboard has a free PCIe X4, X8 or X16 slot and choose the bracket that matches the chassis height. The card requires no extra power connector and works with Windows 10, Windows 11 and Linux without driver installation. Existing USB 3.0 and 2.0 devices remain compatible at their native speeds.

Sustained dual-port throughput

Under continuous load each Type-A port maintains its own 10 Gbps path, so simultaneous transfers to two high-speed external SSDs or industrial cameras do not contend for bandwidth. The ASM3142 chip handles dual-channel traffic without throttling during extended copy or capture sessions.

Highlights

  • Dual 10Gbps Type-A ports transfer data simultaneously with ASM3142 chip
  • PCIe X4 card fits X4, X8 and X16 motherboard slots
  • Full-height and low-profile brackets included for standard and slim cases
  • Plug-and-play on Windows 10, 11 and Linux with USB 3.0 and 2.0 backward compatibility
  • Two independent 10Gbps channels handle high-speed external SSDs and industrial cameras

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box with the U3142A expansion card and do I need any extra cables?

The card ships with both a full-height and a low-profile bracket so it fits standard and slim cases; no extra cables are required because the ports are built on the card itself.

The title mentions PCIe X4 and USB3.1 Gen2 — which slot and port combination should I pick for my build?

Install the card in any PCIe X4, X8 or X16 slot; the two Type-A ports each run at 10Gbps USB3.1 Gen2 and work simultaneously without sharing bandwidth.

What does the 10Gbps figure mean when I plug in a fast external SSD on Windows 10 or 11?

Each port can sustain up to 10Gbps transfer with compatible drives, and the ASM3142 chip keeps both ports at full speed at the same time; the card is plug-and-play on Win10, Win11 and Linux.

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