StarTech.com

Dual-Port USB 3.1 Card - 10Gbps per port - 2x USB-A - PCIe

Add two 10Gbps USB Type-A ports to your computer, through a PCI Express slot

Product ID: PEXUSB312A2

  • Transfer files and access USB 3.1 devices faster, with up to 10Gbps throughput
  • Optional SATA power connector provides up to 900mA per USB port
  • Cost-effective backward compatibility
View More
  • PCIe x4 interface compliant with PCI Express Base Specification Revision 3.0
  • Fits into standard or low-profile systems with a dual-profile design
  • Compliant with UASP (USB Attached SCSI Protocol) Revision 1.0
  • Compliant with Universal Serial Bus 3.1 Specification Revision 1.0, and Universal Serial Bus Specification Revision 2.0
48,99 € EUR exc VAT
59,28 € EUR inc VAT

Overview

This USB 3.1 card lets you add two USB Type-A ports to your computer, through a PCI Express slot. It enables you to upgrade your current system by adding two USB 3.1 Gen 2 ports to your computer and giving you access to data transfer speeds up to 10Gbps.

Faster USB performance

By adding 10Gbps USB ports to your computer, you can harness the speed of USB 3.1 Gen 2 and rest assured you’re ready for both current and future high-bandwidth USB-A devices.

With higher data throughput support, this PCI Express USB 3.1 card is a necessity for external drives, drive enclosures, and many other USB 3.1 peripherals. Plus, the USB card includes an optional SATA power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.1 bus-powered devices (500mA for USB 2.0). The card is ideal for use with large external storage solutions.

Compatible with older USB devices

Connecting older peripherals isn’t a problem. This versatile dual-port USB 3.1 card is backward compatible with legacy USB 3.0/2.0 devices that use the common USB Type-A port, so you can eliminate the added expense and aggravation of purchasing new devices.

Easy installation

The USB 3.1 PCIe card is compatible with a broad range of Windows® and Linux® operating systems. Plus, the high-quality card includes both standard-profile and low-profile brackets, making it easy to install in full or small form-factor PCs and servers.

The PEXUSB312A2 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Applications

Upgrade an older PCIe equipped desktop from USB 3.0/2.0 to USB 3.1 Gen 2 (10Gbps)

Expand the USB capabilities of your system with two additional USB ports, or install the card as a vital hardware component when building a new PC

Ideal for file backups, video editing, and data recovery, using high-bandwidth USB 3.1 Gen 2 external storage solutions

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID ASMedia - ASM2142
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
Performance
Maximum Data Transfer Rate 10Gbps
Type and Rate USB 3.1 Gen 2 - 10 Gbit/s
UASP Support Yes
Connector(s)
Connector Type(s) 1 - PCI Express x4 Male
External Ports 2 - USB 3.1 USB Type-A (9 pin, Gen 2, 10 Gbps) Female
Internal Ports 1 - SATA Power (15 pin) Plug
Software
OS Compatibility Windows® 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Linux® 3.5 to 4.11.x LTS version only
Special Notes / Requirements
Note The maximum throughput of this card is limited by the bus interface. PCI Express Gen 1.0 max throughput is 2.5Gbps. PCI Express Gen 2.0 max throughput is 5Gbps. PCI Express Gen 3.0 max throughput is 10Gbps.
The available bandwidth (10Gbps) is shared equally between the two ports.
System and Cable Requirements PCI Express enabled computer or server with a PCI Express x4 slot or higher (x8, x16)
Optional SATA power connector
Environmental
Humidity 20~80% RH
Operating Temperature 5°C to 50°C (41°F to 122°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Physical Characteristics
Product Height 70 mm [2.8 in]
Product Length 95 mm [3.7 in]
Product Weight 50 g [1.8 oz]
Product Width 12 mm [0.5 in]
Packaging Information
Shipping (Package) Weight 124 g [4.4 oz]
What's in the Box
Included in Package 1 - USB 3.1 card
1 - low-profile bracket
1 - quick-start guide

Compatibility

View full OS compatibility
Windows® 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Linux® 3.5 to 4.11.x LTS version only

Certifications

Related Products

2-Port USB 3.1 (10Gbps) Card - USB-A, 1x External, 1x Internal - PCIe
PEXUSB311EI
2-Port USB 3.1 (10Gbps) Card - USB-A, 1x External, 1x Internal - PCIe

Upgrade your computer to the faster speed of USB 3.1 Gen 2, by adding one external and one internal 10Gbps USB Type-A ports

58,99 € exc VAT
71,38 € inc VAT
4-Port PCI Express USB 3.0 Card
PEXUSB3S42
4-Port PCI Express USB 3.0 Card

Add four USB 3.0 ports – three external ports and one internal port – to your computer

44,99 € exc VAT
54,44 € inc VAT
7-Port PCI Express USB 3.0 Card - Standard and Low-Profile Design
PEXUSB3S7
7-Port PCI Express USB 3.0 Card - Standard and Low-Profile Design

Get the scalability you need by adding 7 USB 3.0 ports with SATA power to your computer

90,99 € exc VAT
110,10 € inc VAT
4-Port PCI Express USB 3.0 Card - 2 External, 2 Internal - SATA Power
PEXUSB3S2EI
4-Port PCI Express USB 3.0 Card - 2 External, 2 Internal - SATA Power

Add front or rear panel USB 3.0 ports to your computer case using USB 3.0 motherboard-style headers

47,99 € exc VAT
58,07 € inc VAT
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
PEXUSB3S44V
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 4 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power

Add four USB 3.0 ports with four independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot

134,99 € exc VAT
163,34 € inc VAT
3-Port PCI Express USB 3.0 Card + Gigabit Ethernet
PEXUSB3S3GE
3-Port PCI Express USB 3.0 Card + Gigabit Ethernet

Running low on expansion slots? Merge USB 3.0 and GbE into a single PCIe combo card

73,99 € exc VAT
89,53 € inc VAT
1 Port Flush Mount ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support
ECUSB3S11
1 Port Flush Mount ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support

Add a USB 3.0 port connection that inserts flush into a laptop ExpressCard slot

32,99 € exc VAT
39,92 € inc VAT

Accessories

Product Support

Frequently Asked Questions

Before You Buy

Yes, it is required to use the included power connector with this card. Additional power is required above what the PCI or PCI Express slot on the motherboard is able to provide. If the power connector is not used with the card, the devices used with the card are not likely to function correctly, and the ports on the card will not be able to output the maximum amount of power USB is capable of.

USB 3.1 is the most recent version of the USB (Universal Serial Bus) standard for connecting computers and electronic devices. It is capable of data transfer speeds up to 10Gbps, and while it can use the USB-C connector type, it can also use a variety of other connector types. To achieve USB 3.1 transfer speeds, your USB host connection, cables, and device must all support USB 3.1. USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). 

USB 3.0 is capable of data transfer speeds up to 5Gbps. USB 3.0 is also known as USB 3.1 Gen 1 (5Gbps).

USB 3.1 is backwards compatible with USB 3.0 and USB 2.0, except in the following scenarios:

  • USB-B 3.1 cables are not compatible with USB-B 2.0 ports.
  • Unless you use an adapter, USB-C ports or cables will not work with USB-A or USB-B ports or cables.
  • Devices that require USB 3.1 transfer speeds of 10Gbps might not work with USB 3.0 or USB 2.0, or you might experience lower transfer speeds and impacted performance.
  • Bus-powered USB devices that requires more power than what USB 2.0 can provide are not compatible with USB 2.0.

For products related to this article, click here.

To transfer data at speeds of 10Gbps, you need to confirm that the following components in your setup support USB 3.1:

  • The USB host connection
  • The USB cable
  • The USB device and any subcomponents (for example, a hard drive docking station and the hard drives in the docking station)

Note: USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). Devices that support USB 3.1 should have the USB 3.1 symbol on them. If the USB 3.1 symbol does not appear on your USB source or device, refer to the information provided by the manufacturer to confirm whether the USB source or device support USB 3.1.

Installation

Before you install the device, make sure that your operating system is current (for example, the most recent service pack is installed).

  1. Download the latest drivers from the StarTech.com website at www.startech.com/Support. The part number and product ID are on the product packaging.

Note: Windows usually saves the files to the Downloads folder that is associated with your user account (for example, C:\Users\your_name\Downloads).

  1. After the download is complete, right-click the zip folder that you downloaded, click Extract All, and complete the instructions.
  2. In the list of extracted files, right-click the setup.exe file and click Run as Administrator.

Note: If the Run as Administrator option is not available, you might be attempting to run the installer from within the zipped file. Complete the instructions in step 2 to extract the files.

  1. Complete the instructions to install the device drivers, and restart your computer when prompted to.

Your device should be ready to use.

How to

To confirm that Windows detects your expansion card, complete the following:

  1. Press the Windows key+R, type devmgmt.msc, and press Enter.
  2. In Device Manager, under the appropriate heading, confirm that your expansion card is listed and that there isn't an exclamation mark next to it.  For example, a USB controller card would be under Universal Serial Bus controllers.

Your expansion card is listed according to the name of the chipset. To determine the name of the chipset of your expansion card, navigate to www.StarTech.com and look on the Technical Specifications tab for your product.

Troubleshooting

If the USB device does not work after your computer has been in extended hibernation, it is likely that Windows has automatically turned off the USB Root hub to save power. 

The steps below outline how to configure the USB root hub to stay on during hibernation, to prevent this from happening.
 

Windows 10 / 8

  1. On your keyboard, press the Windows key + X and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows 7 / Vista

  1. Click the Start button and select Control Panel.
  2. Click Hardware and Sound, then click Power Options.
  3. Click Change plan settings for the plan you want to change.
  4. Click Change advanced power settings.
  5. Click the plus sign (+) next to “USB settings” and “USB selective suspend setting” to expand the options and change the setting to Disabled.
  6. Click OK to apply the setting.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

Windows XP

  1. On your desktop, right-click the My Computer icon and select Properties.
  2. Click the Device Manager tab.
  3. Expand Universal Serial Bus controllers by clicking the arrow to the left of it.
  4. Right-click the first USB Root Hub device and select Properties.
  5. Click the Power Management tab.
  6. Clear the box next to Allow the computer to turn off this device to save power.
  7. Click OK to apply the setting.
  8. Repeat steps 4-7 for any remaining devices in the Universal Serial Bus Controllers section with “Root Hub” in the name.

Note: You may need to disconnect and re-connect your USB device after applying these settings to re-establish the connection.

When you troubleshoot issues with a USB controller card, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:

  • USB cables

  • USB devices

  • USB controller card

To test your setup components, try the following:

  • Use the USB cable, device, and controller card in another setup to see if the problem is with the components or the setup.

  • Use a different USB cable, device, and controller card in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the USB device and controller card, it is recommended that you do the following:

If your setup components support USB 3.1 but you are experiencing slower transfer speeds than you expected, consider the following:

  • A USB host connection with multiple USB 3.1 ports might not be able to support 10Gbps on each port simultaneously.
  • The type of port on a device does not determine whether the device is capable of USB 3.1 speeds. A USB-C port might not support USB 3.1 speeds, while USB-A and USB-B ports might support USB 3.1 speeds.
  • Any other devices that you include in your setup, such as an older hard drive in a USB 3.1 enclosure, might create a point of congestion and slow down transfer speeds.

To confirm the functionality of your USB host connection, its ports, and any other devices in your setup, refer to the information provided by the manufacturer.

Note: USB 3.1 is also known as USB 3.1 Gen 2 (10Gbps). Devices that support USB 3.1 should have the USB 3.1 symbol on them. If the USB 3.1 symbol does not appear on your USB source or device, refer to the information provided by the manufacturer to confirm whether the USB source or device support USB 3.1.