StarTech.com 2-Port 10Gbps USB C PCIe Card - USB 3.1 Gen 2 PCI Express Card

StarTech.com PEXUSB312C3

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Manufacturer Part#  PEXUSB312C3

UPC Code: 065030887434

Provantage Code:  STRP0NE

Condition:  Factory New

  • Product Type: USB Adapter
  • Limited Warranty: 2 Year
  • Host Interface: PCI Express x4
  • Country of Origin: Taiwan
  • Form Factor: Plug-in Card
  • TAA Compliant: Yes

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StorageI/O and Storage ControllersUSB/Firewire Adapters


StarTech.com PEXUSB312C3 Specifications

    2-Port 10Gbps USB C PCIe Card - USB 3.1 Gen 2 PCI Express Card

At a Glance

    Rear View
    • VERSATILE USE: This 2-port PCIE USB 3.2 Gen 2 card features a dual-profile design to fit into both standard and low-profile systems, and includes an optional SATA power connector for high power devices Upgraded version of our popular USB card PEXUSB312C2
    • POWER: Expansion card w/ SATA power header supplies supplemental power to the USB Type-C ports (when motherboard power is insufficient) providing up to 5V 3A (15W) via the USB-C ports
    • MAX PERFORMANCE WITH USB STORAGE DEVICES: 2-port USB-C PCIe Card adapter supports USB Attached SCSI Protocol (UASP) optimizing USB performance w/ external storage devices like SSDs, HDDs, NVMe drives
    • COMPATIBILITY: Installs in full/low-profile PCIe 3.0 x4 desktop/server slot (lower performance w/ PCI-e 2.0); Windows/Linux/macOS w/auto driver install (Windows 8 & above); Works w/USB 3.2/3.1/3.0/2.0
    • THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty & free lifetime 24 hour technical support on thisdual port USB-C PCI Express Add On Card w/ full & low profile bracket incl.


    This PCIe USB 3.2 Gen 2 card installs into an available PCI-Express slot in your computer and enables you to upgrade your current system by adding two USB-C (10Gbps) ports.

    Also known as USB 3.1 Gen 2, this USB 3.2 Gen 2 card adds two 10Gbps USB Type-C ports to your computer.

    Utilizing an ASMedia ASM3142 chipset, this card harnesses the speed of USB 3.2 Gen 2. With higher data throughput support, this USB 3.2 Gen 2 PCIe expansion card is a necessity for external drives and many other USB 3.2 Gen 2 peripherals and includes an optional SATA power connector for high power devices.

    The card is backward compatible with USB 3.2 Gen 1 (5Gbps) and USB 2.0 (480mbps) devices. The card works with newer USB-C devices, but can easily support your existing USB-A peripherals using inexpensive USB Type C cables and adapters. See our Accessories Tab for supported options.

    The USB 3.2 card is compatible with Windows, Linux and macOS operating systems. The card includes both standard-profile and low-profile brackets to install in various form-factor PCs and servers.

    StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales.

    The PEXUSB312C3 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

    More from the Manufacturer


    OS Compatibility:

    • Windows® 7, 8, 8.1, 10, 11
    • Windows Server® 2008 R2, 2012 R2, 2016, 2019
    • Linux® 3.5 and up - LTS Versions only
    • macOS Catalina (10.15)
    • macOS Mojave (10.14)
    • macOS High Sierra (10.13)
    • macOS Big Sur (11.0)
    • macOS Monterey (12.0)
    • macOS Ventura (13.0)

Package Contents

    • 2-Port PCIe USB 3.1 Card - 2x USB-C - USB 3.1 Gen 2 Up to 10Gbps
    • 1 x Low Profile Bracket
    • 1 x Quick Start Guide

Additional Product Images


Product Name2-Port 10Gbps USB C PCIe Card - USB 3.1 Gen 2 PCI Express Card
Manufacturer Part NumberPEXUSB312C3
Product TypeUSB Adapter
Total Number of USB Ports2
Product ColorBlack
Form FactorPlug-in Card
Host InterfacePCI Express x4
Environmentally FriendlyYes
Number of SATA Ports1
UASP SupportYes
Number of USB 3.2 Ports2
Country of OriginTaiwan
Operating System SupportedWindows 7

Windows 8

Windows 8.1

Windows 10

Windows 11

Windows Server 2008 R2

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

Windows Server 2022

Mac OS X 10.13 High Sierra

Mac OS X 10.14 Mojave

Mac OS X 10.15 Catalina

Mac OS X 11.0 Big Sur

Mac OS X 12.0 Monterey

Mac OS X 13.0 Ventura

Linux 3.5

Packaged Quantity1
Platform SupportedLinux



Limited Warranty2 Year
Supplies/Accessories for StarTech.com PEXUSB312C3

StarTech.com 1m 3ft USB C to Micro B Cable M/M / USB 3.1 (10 Gbps)

Mfg Part# USB31CUB1M

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