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Green PCIe card with two blue USB 3.0 ports and gold edge connector

Winait

Winait FS-U2-Pro 2-Port USB 3.0 PCIe Expansion Card

SKU CH-KD33-31PVW

Adds two USB 3.0 ports via a PCIe x1 slot, delivering 5 Gbps total bandwidth and up to 4 A combined power without an extra power cable

  • Product typePCI Express to USB Card
  • Adds two USB 3.0 ports via a single PCIe x1 slot
  • Delivers up to 5 Gbps total bandwidth for fast file transfers
  • Self-powered design draws up to 75 W from the PCIe slot, no extra cable needed
  • Each port supplies up to 2 A for power-hungry drives and peripherals
  • Built-in circuit protection and voltage-stabilising capacitors safeguard connected devices

Two USB 3.0 ports via PCIe x1

The Winait FS-U2-Pro adds two USB 3.0 ports to a desktop through a single PCI Express x1 slot. It is aimed at PC builders and server administrators who need extra SuperSpeed connections for external drives, cameras or other peripherals. The card draws all required power from the slot itself, so no separate power cable is needed. Installation is plug-and-play on modern Windows versions.

5 Gbps shared bandwidth and 4 A total power

The two ports share a maximum 5 Gbps data rate and can deliver up to 2 A each, 4 A combined, for high-draw devices such as hard-drive enclosures. On-board voltage regulation and circuit protection are designed to keep attached storage and sensors stable. A Renesas controller handles the USB 3.0 protocol. Driver installation is required only on Windows XP, Vista, 7 and older Server releases.

Self-powered design removes external cable

FebSmart Self-Powered Technology converts the slot’s 12 V supply to 5 V without an extra connector, simplifying cable routing in tight cases. The integrated power modules and protection circuitry aim to prevent voltage drops when multiple power-hungry peripherals run simultaneously. This makes the card suited for workstations, NAS boxes or VR setups that demand reliable port power.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 70% of the 891 comparable items (median $30.99).

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Specifications

Product
Product typePCI Express to USB Card

Questions about this item

What does the 5 Gbps total bandwidth mean when I plug two USB 3.0 devices into this card?

The two ports share a single 5 Gbps PCIe 1× link, so simultaneous transfers divide that ceiling between them rather than giving each port a full 5 Gbps pipe.

Which PCI Express slot standard does the card use and what practical limit does it set?

It uses a PCIe 1× slot; the slot’s 75 W power budget is converted on-board to supply up to 4 A total at 5 V across both ports.

What physical slot and case space are required to install the card?

A standard PCIe x1 slot and one low-profile rear bracket opening are all that is needed; no external power connector is required.

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