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Green PCB add-in card with four blue USB-A ports and a PCIe x4 gold finger

Vszerda

Vszerda SI-PEX20233 USB 3.2 10Gbps 4-Port Type-A PCIe 3.0 x4

SKU CH-49MA-7AS9G

Adds four USB 3.2 10Gbps Type-A ports via PCIe 3.0 x4 using dual ASMedia ASM3142 controllers, each port delivering 900mA with independent overcurrent protection

  • Four USB 3.2 10Gbps ports added via PCIe 3.0 x4
  • Dedicated 10Gbps bandwidth per port from dual ASMedia ASM3142 controllers
  • Each Type-A port delivers up to 900mA at 5V with overcurrent protection
  • Independent power switch per port guards against power glitches and thermal shutdown
  • Driver-free on macOS 10.9 to 10.10, 10.12+, Windows 10/8, Server 2012+, Linux 2.6.31+

Four-port 10Gbps USB 3.2 add-in card

This PCIe 3.0 x4 card adds four USB Type-A ports, each capable of 10Gbps transfer rates. Dual ASMedia ASM3142 controllers provide dedicated bandwidth per port. The card targets desktop users who need multiple high-speed connections for external storage or peripherals.

Independent power switching and OS support

Each port includes an independent power distribution switch with over-current, power-glitch and thermal-shutdown protection. Up to 900mA at 5V is available per port. Native driver support covers macOS 10.9 to 10.10 and 10.12 onward, Windows 10/8, Server 2012 and later, and Linux kernel 2.6.31 and later. Windows 7, Vista and Server 2008/2003 require a separate driver download.

Verify slot and macOS version before ordering

Confirm your motherboard has a free PCIe x4 slot (electrical x4 or larger) for full bandwidth. macOS 10.11 is explicitly unsupported by the in-box driver. No low-profile bracket is mentioned, so standard-height brackets are assumed. Buyers needing internal headers or Type-C connectors should look elsewhere.

Highlights

  • Four USB 3.2 10Gbps ports added via PCIe 3.0 x4
  • Dedicated 10Gbps bandwidth per port from dual ASMedia ASM3142 controllers
  • Each Type-A port delivers up to 900mA at 5V with overcurrent protection
  • Independent power switch per port guards against power glitches and thermal shutdown
  • Driver-free on macOS 10.9 to 10.10, 10.12+, Windows 10/8, Server 2012+, Linux 2.6.31+

Specifications

No published specifications for this item yet.

Questions about this item

Will the ASM3142 controllers need firmware updates or replacement after heavy use?

The dual ASM3142 controllers are soldered on the card and have no user-serviceable firmware; no maintenance is expected for the life of the card.

What limits sustained 10Gbps throughput on all four ports simultaneously?

The PCIe 3.0 x4 host link caps aggregate bandwidth at roughly 31Gbps, so four 10Gbps ports share that ceiling under full load.

How much heat and power does the card draw when all ports run 900mA loads all day?

Each port supplies up to 900mA at 5V with independent over-current and thermal shutdown; the card draws power from the slot and stays within PCIe limits.

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