StarTech 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector
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StarTech 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector

SKU: STPEXUSB312C MFR: PEXUSB312C
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$50.73
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Key Features

  • Upgrade your PC with this 2-Port USB 3.1 card, adding blazing-fast 10Gbps USB-C connectivity.
  • Experience rapid data transfers & enhanced speeds with this PCI Express USB card, UASP supported.
  • This USB 3.1 Gen 2 adapter card is perfect for external storage, large video, & big file transfers.
  • Enjoy broad OS compatibility; this USB-C card works with Windows, Mac OS, & Linux systems easily.
  • Install easily in standard or low-profile cases; bracket included for versatile computer builds.
  • Add two USB Type-C ports to your desktop, boosting productivity with enhanced USB 3.1 performance.
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Temporarily On Backorder?Expected Availability: 10/2025Request assistance or get notified
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Questions & Answers

Reviews about this item

Review Summary

2025-05-21T20:00:00

Rated 5 out of 5

Great Product for Intended Use

Needed to add a 20 Pin internal USB header to an Asus Z890M board for a 54 in 1 device on a Windows 11 Pro OS. Didn't need SATA power for good results. Unit worked perfectly with OS WHQL drivers. Took longer to unbox unit than to install. Highly recommend.

BarryL

2023-10-26T20:00:00

Rated 5 out of 5

Easy install great product!

Bought this so I could make full use of my Corsair case's 4 USB 3.0 sockets. Mounted quickly with an easy driver installation!

Deph

2023-03-22T20:00:00

Rated 5 out of 5

The most compatible USB 2.0 card

This card is the best pick when installing Windows 98 on modern hardware. Also works great in Windows 11, my expensive Razer mouse is hooked-up to this card so I can use it in Windows 98 and Windows 11 in a dual boot configuration.

OMORES

2022-10-19T20:00:00

Rated 5 out of 5

Works fine, on PCIe2 x 4 channels is 1 GB transfer

4 PCIE-2 x 4 supports the card with an external, self-powered 4-port USB 3.2 hub just fine, and one front panel USB 3.0 port. The card also has a SATA power connector attached. No dropouts, no compatibility issues with an old Intel Server board running Windows 10. Just works.

Greg T.

2022-10-19T20:00:00

Rated 5 out of 5

Works fine, on PCIe2 x 4 channels is 1 GB transfer

4 PCIE-2 x 4 supports the card with an external, self-powered 4-port USB 3.2 hub just fine, and one front panel USB 3.0 port. The card also has a SATA power connector attached. No dropouts, no compatibility issues with an old Intel Server board running Windows 10. Just works.

Greg x.

2020-03-20T20:00:00

Rated 5 out of 5

Great for external DAC

After installing it instead of motherboard's USB ports - there are stops any lags or music distortion while ASIO streaming. Very clear strong sound stream without artefacts. Really huge improvement for my SCHIIT MODI MULTIBIT.

oplacheno_1

2019-12-28T19:00:00

Rated 1 out of 5

Not wirking on Win 10(((

I Bought it one week ago, and can not install it in my lenovo shark bay with Win 10 - system dont see it at all

oplacheno

2019-10-06T20:00:00

Rated 2 out of 5

Detects as USB Type-C & Requires SATA power cable

I bought this because I needed to have an internal USB-A port that was inaccessible to users. But on every boot there is a POST error indicating "USB Type-C Card Detection Error" and that "cable is required between 12C on card and USB-C on the motherboard"... but this isn't a Type-C card (its type-A). The computer and port work fine once you continue past the error screen & reboot again. The only extra port on it is the SATA power cable. So when I get one of those I'll update to see if that fixes it.

Sri_N

2019-01-20T19:00:00

Rated 5 out of 5

Has been working great for 2 years.

Bought 2 years ago for my home built - Windows 10 Home - computer (AMD FX CPU/Gigabyte MB), to add extra USB ports. Have had no issues thus far.

Mathew

2017-08-15T20:00:00

Rated 2 out of 5

Wont work in Dell Servers

Trying to use for USB 3.1 drive dock on a backup server. The card needs power, no power leads on most Dell servers for aux power to pcie cards. The Startech USB 3.0 pcie card did not need aux power if the drive was independently powered. Request a 3.1 card that does not need aux power, even if that violates the 3.1 standard.

BillB50

2017-05-26T20:00:00

Rated 5 out of 5

Exactly what we we're needing

I am one of the " IT " guys Orthopedic Appliance Company here in Asheville NC. Our Dell server has those 2.0 USB ports. Backups being that they are encrypted we're taking 8hrs+/-. Even though backup we're scheduled after hours, it would run into the following day by a few hrs. Ordered the 3.0+ Pcie add-on card, and now complete backups are taking less than 5 and are completed before the staff returned the following morning and are able to be more productive because the local server isn't being bogged down from backups running?. 18 staff members running pervasive database applications along with remote desktop really put a strain on Everything. Best money spent.

Lewis

2017-05-10T20:00:00

Rated 4 out of 5

mostly works

The Technical Specifications are poorly written. This is physically an x4 PCie card, but it is electrically PCIe 2.0 x2. Startech should update all their PCIe card Technical Specifications with specific information like that instead of the vague and useless info currently provided. The problem with x2 is that some old computer chipsets or CPUs may treat that as x1 which would half the performance, or quarter the performance if it is a PCIe 1.0 slot. You can find other cards that use a switch chip (x4 upstream) to connect both USB and eSATA. Such a card will perform better in a x4 PCIe 1.0 slot or a slot that does not support x2. The ASM 1142 chip has a problem where it reports the connection status of my device as 5Gb/sec instead of 10 Gb/sec but the device transfers data at faster than 5 Gb/sec anyway. Sometimes I have to reconnect the device if it reports as 480 Mb/sec (USB 2.0). USB 3.1 gen 2 from an Intel Thunderbolt 3 chip does not have those problems but no-one makes a USB PCIe card using that chip.

joevt2

2017-03-18T20:00:00

Rated 1 out of 5

Great feature if I can get it to work

I wanted to add USB 3 to my HP Z800 with Win 7 Pro 64 bit but it is not working correctly. Confused as it should straight out of the box.

Pierre

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StarTech USB Card Specifications

  • Bus Type

    PCI Express

  • Card Type

    Standard Profile (LP bracket incl.)

  • Chipset ID

    ASMedia - ASM1142

  • Industry Standards

    USB 3.1 Specification Rev. 1.0
    USB Specification Rev. 2.0
    PCI Express Base Specification Rev. 3.0
    Intel xHCI Specification Rev. 1.1
    UASP (USB Attached SCSI Protocol) Rev. 1.0

  • Interface

    USB 3.1 Gen 2

  • Port Style

    Integrated on Card

  • Ports

    2

  • Maximum Data Transfer Rate

    10Gbps

  • Type and Rate

    USB 3.1 Gen 2 - 10 Gbit/s

  • UASP Support

    Yes

  • Connector Type(s)

    1 - PCI Express x4 Male

  • External Ports

    2 - USB Type-C (24 pin) USB 3.1 (10Gbps) Female

  • Internal Ports

    1 - SATA Power (15 pin) Plug

  • OS Compatibility

    Windows 10 (32/64), 8 / 8.1 (32/64), 7 (32/64)
    Windows Server 2012, 2008 R2
    Mac OS 10.9 and later (tested up to 10.10)
    Linux 3.5

  • System and Cable Requirements

    PCI Express enabled computer or server with a PCI Express x4 slot or higher (x8, x16)
    SATA power connector

  • Humidity

    20-80% RH (Non-condensing)

  • Operating Temperature

    5 to 50 deg. C / 41 to 122 deg. F

  • Storage Temperature

    -25 to 70 deg. C / -13 to 158 deg. F

  • Certifications

    RoHS Complaint
    CE
    FC

  • Dimensions (H x L x W)

    4.7 x 3.6 x 0.7" / 11.94 x 9.14 x 1.78cm

  • Weight

    1.7oz / 48.19g

  • UPC Code

    065030863681

About StarTech USB Card

FEATURED REVIEWS

Has been working great for 2 years.

By Mathew

Bought 2 years ago for my home built - Windows 10 Home - computer (AMD FX CPU/Gigabyte MB), to add extra USB ports. Have had no issues thus far.

Great Product for Intended Use

By BarryL

Needed to add a 20 Pin internal USB header to an Asus Z890M board for a 54 in 1 device on a Windows 11 Pro OS. Didn't need SATA power for good results. Unit worked perfectly with OS WHQL drivers. Took longer to unbox unit than to install. Highly recommend.

With the 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector, you can unlock the future of universal connectivity and high-speed performance. This innovative card equips your desktop with two USB-C ports, offering a combined bandwidth of up to 10Gbps. This increased bandwidth allows you to save time and bypass the performance bottlenecks commonly associated with other connectivity technologies.

This USB 3.1 card is designed to keep your computer compatible with the rapidly growing range of USB-C peripherals. It enables faster file transfers and access to USB 3.1 devices, making it an essential addition for anyone using external hard drives, hard drive enclosures, and other USB 3.1 peripherals.

The card's USB Type-C ports each deliver up to 3A of power, and the integrated SATA power connector allows you to connect high-powered devices. This makes it an ideal solution for large external storage solutions. The card fits into standard or low-profile systems thanks to its dual-profile design, and its PCIe x4 interface is compliant with PCI Express Base Specification Revision 3.0.

The USB-C ports on this card are Thunderbolt 3 port compatible, offering 10Gbps data-only transfer. The card is also compliant with UASP (USB Attached SCSI Protocol) Revision 1.0, as well as USB 3.1 Spec 1.0 and 2.0, ensuring broad compatibility and high performance.

The 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector is designed for easy installation in various form factors. It comes with a full-profile bracket and includes a half-height or low-profile bracket, making it suitable for full or small form-factor desktops or servers. No additional software or drivers are required for installation in many natively supported operating systems.

Whether you're deploying at home or in the office, building a PC, or upgrading an older PCIe based desktop from USB 3.0 or 2.0 to USB 3.1 Gen 2 (10Gbps), this card is a vital hardware component. It's perfect for tasks like backing up files, video editing, and data recovery using high-bandwidth USB 3.1 Gen 2 external storage solutions.

Experience the future of connectivity and performance with the 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector.

StarTech USB Card Features

  • High-speed performance with combined bandwidth of up to 10Gbps
  • Two USB-C ports for universal connectivity with USB-C peripherals
  • PCIe x4 interface compliant with PCI Express Base Specification Revision 3.0
  • USB-C ports compatible with Thunderbolt 3 port (10Gbps data only)
  • Compliant with UASP (USB Attached SCSI Protocol) Revision 1.0, USB 3.1 Spec 1.0 and 2.0
  • Easy installation in various form factors, suitable for full or small form-factor desktops or servers

Warranty Information

This product has a limited warranty of 24 months.

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Key Features

  • Upgrade your PC with this 2-Port USB 3.1 card, adding blazing-fast 10Gbps USB-C connectivity.
  • Experience rapid data transfers & enhanced speeds with this PCI Express USB card, UASP supported.
  • This USB 3.1 Gen 2 adapter card is perfect for external storage, large video, & big file transfers.
  • Enjoy broad OS compatibility; this USB-C card works with Windows, Mac OS, & Linux systems easily.
  • Install easily in standard or low-profile cases; bracket included for versatile computer builds.
  • Add two USB Type-C ports to your desktop, boosting productivity with enhanced USB 3.1 performance.

What's in the box:

  • StarTech 2-Port USB 3.1 (10Gbps) Card with 2x USB-C Connector
  • Low-Profile Bracket
  • Instruction Manual
  • StarTech 2 Year Warranty