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Green circuit board with four blue USB ports on a metal bracket

SMUGDESK

SMUGDESK PCIe USB 3.0 Expansion Card 4-Port

SKU CH-XHGP-B5Y0E

Adds four USB 3.0 ports to a desktop via a single PCIe slot, delivering up to 5Gbps per port for flash drives, external hard disks and office peripherals

  • Add four high-speed USB ports via a single PCIe slot
  • Achieve up to 5Gbps data transfer per port
  • Stable multi-device operation with built-in control chip
  • Fits standard desktop chassis with full-height PCI bracket
  • Works with USB 2.0 and 1.1 devices for broad compatibility

Four-port PCIe USB 3.0 adapter

This PCIe expansion card adds four independent USB 3.0 ports to a desktop computer through a single PCIe slot. It targets users whose motherboards lack enough native high-speed ports for flash drives, external hard disks and office peripherals. The card fits standard full-height brackets and works in x1, x4, x8 or x16 slots. Driver support covers Windows and Linux systems.

Stable multi-device controller

A built-in main control chip keeps all four ports running steadily at the same time so multiple peripherals stay responsive. Backward compatibility with USB 2.0 and USB 1.1 devices means older keyboards, mice and printers still connect without adapters. The standard bracket ensures a secure fit in regular desktop chassis.

5 Gbps shared bandwidth headroom

Each port supports up to 5 Gbps transmission speed, giving comfortable headroom for typical flash storage and external hard disks. The total bandwidth is shared across the four ports, so sustained maximum throughput on every port simultaneously will hit the PCIe lane limit. Buyers needing more than four high-speed ports or dedicated bandwidth per device should consider a different solution.

Highlights

  • Add four high-speed USB ports via a single PCIe slot
  • Achieve up to 5Gbps data transfer per port
  • Stable multi-device operation with built-in control chip
  • Fits standard desktop chassis with full-height PCI bracket
  • Works with USB 2.0 and 1.1 devices for broad compatibility

Specifications

No published specifications for this item yet.

Questions about this item

Will the main control chip or PCIe slot need periodic replacement under normal desktop use?

The card uses a single built-in control chip and a standard PCIe slot; neither has a published service interval and both are solid-state components with no moving parts to wear out.

Does the 5 Gbps per-port ceiling or the single PCIe lane become the bottleneck first during sustained multi-drive transfers?

Four simultaneous 5 Gbps streams exceed the bandwidth of one PCIe 2.0 x1 lane, so the slot interface saturates before any individual USB 3.0 port reaches its nominal limit.

How much extra heat or fan noise should I expect when all four ports run external hard drives all day?

The low-profile bracket has no active cooling; the controller runs warm but stays within normal desktop temperature ranges and adds no audible noise.

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