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Green PCB PCIe card with one USB-C and one USB-A port

SMUGDESK

SMUGDESK PCIe USB 3.1 Gen1 to USB-C + USB 3.0 Type-A Adapter

SKU CH-9BVF-58K3M

Adds one USB-C and one USB 3.0 Type-A port to a desktop via PCIe X1, delivering 5Gbps speeds with built-in circuit protection

  • Adds one USB-C and one USB 3.0 Type-A port to a desktop via PCIe x1 slot
  • 5 Gbps SuperSpeed transfer compliant with USB 3.1 Gen 1 standard
  • UASP acceleration protocol delivers 10X faster file copy speed than USB 2.0
  • Built-in main control chip with overcurrent, short-circuit and ESD protection plus optional SATA auxiliary power
  • Native driver support for Windows 7/8/10/11 and Linux for plug-and-play operation

Dual USB-C and USB-A Expansion

This PCIe riser card adds one USB-C port and one USB 3.0 Type-A port to a desktop computer through a single PCIe x1 slot. It targets users whose motherboards lack modern front-panel connectivity or who need extra ports for external storage and peripherals. The card fits x1, x4, x8 and x16 slots for broad compatibility.

Bandwidth and Power Limits

The adapter operates at the USB 3.1 Gen 1 speed of 5 Gbps, which is the practical ceiling for both ports combined. Throughput will not exceed this rate even when only one device is connected. High-draw devices may require the optional SATA auxiliary power connector to prevent intermittent disconnects under load.

Single-Lane PCIe x1 Interface

The card uses a single PCIe lane, so total bandwidth is shared between the two ports and cannot surpass the 5 Gbps USB limit. Builders needing multiple independent 5 Gbps links or higher-speed standards such as USB 3.1 Gen 2 should choose a different solution.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $19.99
Pricier than about 70% of the 1,430 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Which version should I choose for adding both USB-C and USB-A ports?

This single model adds one USB-C and one USB 3.0 Type-A port through a PCIe x1 slot, giving both connector types in one card.

What does the 5 Gbps rating mean for everyday file transfers?

It delivers USB 3.1 Gen 1 speeds up to 5 Gbps with UASP support, making large-file copies to portable SSDs or hard drives roughly ten times quicker than USB 2.0.

Does the PCIe x1 interface limit the throughput of the two ports?

The card fits any PCIe x1, x4, x8 or x16 slot and runs at the full 5 Gbps per port; an optional SATA power connector supplies extra current for high-draw devices.

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