SIIG 4 Port USB 3.0 (USB 3.2 Gen 1) PCIe Card with 4 Dedicated 5Gbps Channels - Quad Core 20Gbps - UASP - SATA Power - Low Profile PCIe Adapter Card

Adds four independent external SuperSpeed USB 3.0 (USB 3.2 Gen 1) 5Gbps Type-A ports to your PCI Express (PCIe) enabled desktop computer
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    SIIG 4-Port Quad Core USB 3.0 (USB 3.2 Gen 1) Expansion PCIe Card (JU-P40811-S1)

    When compared to a laptop, a desktop computer offers several advantages, perhaps the most important is that you can continue to upgrade it over time. So adding more USB ports is a viable option. This is particularly true for someone who needs more and better peripherals, such as gamers or YouTubers who require multiple USB-enabled devices connected at once.


    • Quad-core - SIIG's JU-P40811-S1 is designed with four independent controller ICs designated for each USB port, so each port delivers Super-speed data transfer rate up to 5Gbps, not sharing the bandwidth from each other, so the total USB bandwidth is up to 20Gbps. It is ideal for users who need multiple external HDDs connection.
    • Industry-recognized chipset - This PCIe card is built with industry-recognized chipset uPD720202 from Renesas for prominent and steady performance.
    • For Low Profile - The card is designed with a low-profile bracket, to fit lower size system form factor. It does NOT fit the standard size system form factor.


    • Widely Supported Speed Ranges - The card supports the following speed data rate as follows: Low-speed (1. 5 Mbps) / Full-speed (12Mbps) / High-speed (480 Mbps) / Super-speed (5Gbps).
    • Current Protection - Each USB port featured independent over-current protection to further protect your devices and the board itself from unforeseen power spikes.
    • Power Supply - This PCIe card is also equipped with a SATA power connector for high-power USB devices. The power supply is up to 900mA per port to USB 3.0 (USB 3.2 Gen 1) and 500mA to USB 2.0 devices.

    Multiple Connectivity Port

    Comes with four USB 3.0 (USB 3.2 Gen 1) Type-A ports and one SATA port for power connector


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    Hassle-Free Installation

    This serial card is easy to install and configure and supports a wide range of Windows OS. The card is a low profile bracket design to fit the lower size system form factor. It does NOT fit the standard profile.

    NoteSATA power connector is required for power supply.

    Independent Channels

    Traditional single bus USB 3.0 expansion cards share the maximum bandwidth when multiple devices are connected because there is one chipset controller IC on the card. SIIG's JU-P40811-S1 deploys four controller chipsets, so each port is operated on a separate independent transmission channel. So not only each USB port delivers a maximum transfer rate of up to 5Gbps, but the total bandwidth increases up to 20Gbps to reduce performance bottlenecks.

    What is in the Box?

    • 4-Port SuperSpeed USB 3.0 PCIe Card - Quad Core
    • Driver CD (The latest version can be downloaded on SIIG's website)
    • Quick Start Guide


    • Chipset: Renesas uPD720202
    • Compliant with USB 3.0 Specification
    • Bus connector: PCI Express 4x
    • Version: PCI Express 2.0
    • USB data transfer rate: Up to 5Gbps for each port
    • Total USB bandwidth: 20Gbps
    • USB power output: Up to 900mA for each port
    • Product:
      • Dimensions: 5.91" (W) x 0.79" (H) x 3.15" (D)
      • Weight: 0.15 lbs
      • Color: Green
      • Connectors:
        • 4x 9-pin USB 3.0 (USB 3.2 Gen 1) Type A, Female
        • 1x 15-pin SATA power connector
          • Note: SATA power connector required
    • Unit Package:
      • Dimensions: 7.40" (W) x 1.18" (H) x 5.48" (D)
      • Weight: 0.30 lbs
    • Environmental conditions:
      • Operating temperature: 32 to 140 degrees F
      • Storage temperature: 14 to 158 degrees F
      • Relative humidity: 5% to 90% RH (non-condensing)
    • Certifications/Standards: FCC, CE, RoHS
    • Warranty: 2 years limited
    • Country of origin: China



    • 4x 9-pin, USB 3.0 (USB 3.2 Gen 1) Type-A, Female
    • 1x 15-pin, SATA power connector, Female

    System Requirements

    • Low profile desktop PC with one available PCI Express (PCIe) x4 slot
    • SATA power connection is required
    • Windows® 11 (64-bit) / 10 (32-/64-bit) / 8.x (32-/64-bit) / 7 (32-/64-bit)
    • Windows® Server 2019 / 2016  / 2012 R2 / 2012 (32-/64-bit) / 2008 R2 / 2008

    Package contents

    • 4-Port SuperSpeed USB 3.0 PCIe Card - Quad Core
    • Driver CD
    • Quick Start Guide



Hardware Version: 1

Windows 10
Driver built into operating system
In special circumstances the Windows 8/7 driver can be installed into Window 10
No driver installation required
Driver built into operating system
Windows 8 (32-/64-bit) / 7 (32-/64-bit) / Server 2016 / 2012 R2 / 2012 / 2008 R2 / Server 2003 & 2008 (32-/64-bit)
Download driver
Driver version: v3.0.23.0

Frequently Asked Questions (Q&A)

Q: Will this USB 3.0 PCIe card work on a Linux system?

Yes, it can work on Linux. If your Linux can support the Renesas uPD720202 chipset

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