2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power

Add 2 SuperSpeed USB 3.0 ports to your PCI Express-enabled PC

Product ID: PEXUSB3S25

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  • Provides two external USB 3.0 ports with UASP support
  • Supports data rates up to 5 Gbps
  • Compliant with PCI Express 2.0 specifications
Your price
€34.99 EUR
VAT not included in the price

In stock: 170

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The PEXUSB3S25 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to your PCI Express-enabled computer system, with an optional LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0).

Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP is not supported by all operating systems). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details.

The PCIe USB 3.0 adapter is compliant with USB 3.0 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the controller card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Improved Performance with UASP

UASP is supported in Windows® 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance.

UASP Speed Diagram

At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources.

UASP Speed Diagram

Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

Applications

  • Upgrade an older PCIe-based system from USB 2.0 to USB 3.0 connectivity
  • Expand the USB capabilities of your system with two additional external ports
  • Connect additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, etc. to a computer system

The StarTech.com Advantage

  • Increase efficiency of your USB 3.0 devices with up to 5 Gbps of bandwidth
  • Fits into full or low-profile/small form factor (SFF) systems, with a dual profile design
  • Power high-powered USB devices as necessary, with the optional LP4 power connector

Partner Numbers

  • ALSO DEUTSCHLAND GMBH 2764663
  • CMS Distribution V209283
  • CMS Distribution Ireland PEXUSB3S25
  • Esprinet PEXUSB3S25
  • Esprinet Italy PEXUSB3S25
  • Exertis 0010026927
  • Exertis IE STCPEXUSB3S25
  • Ingram Austria V932985
  • Ingram DK V932985
  • Ingram Finland V932985
  • Ingram Germany V932985
  • Ingram IE V932985
  • Ingram Micro Belgium 2528548
  • Ingram Micro España V932985
  • Ingram Micro France V932985
  • Ingram Micro Italy V932985
  • Ingram Micro Netherlands 2528548
  • Ingram Micro Sweden V932985
  • Ingram Micro UK V932985
  • Ingram Switzerland V932985
  • Tech Data - Belgium 4428561
  • Tech Data - France 4428561
  • Tech Data - Italy 4428561
  • Tech Data - Netherlands 4428561
  • UPC 065030854603

Compatibility

  • Linux logo
  • Windows 8 logo
  • Windows Server 2012 logo
  • Windows 7 logo
  • Windows 10 logo
  • Windows Server 2016 logo
  • Windows Server 2019 logo
Windows® Vista, 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016, 2019
Linux 2.6.31 to 4.11.x LTS versions only

Specifications

Warranty Information Warranty 2 Years
Connector(s) 1 - Connector Type(s) PCI Express x1
1 - Internal Ports LP4 (4 pin; Large Drive Power)
2 - External Ports USB Type-A (9 pin) USB 3.0 (5 Gbps)
Environmental Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Humidity 5~85% RH
Hardware Ports 2
Interface USB 3.0
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Port Style Integrated on Card
Industry Standards USB 3.0 Specification Rev. 1.0
USB Battery Charging Specification Rev. 1.2
PCI Express Base Specification Rev. 2.0
Intel xHCI Specification Rev. 1.0
Chipset ID Renesas/NEC - µPD720202
Packaging Information Package Height 30 mm [1.2 in]
Package Length 17.1 cm [6.7 in]
Shipping (Package) Weight 154 g [5.4 oz]
Package Width 14.3 cm [5.6 in]
Performance Maximum Data Transfer Rate 5 Gbps
Maximum Cable Length 3 m [9.8 ft]
Type and Rate USB 3.0 - 5 Gbit/s
UASP Support Yes
MTBF 38,400 hours
Physical Characteristics Weight of Product 50 g [1.8 oz]
Material Steel
Product Length 82 mm [3.2 in]
Product Width 18 mm [0.7 in]
Product Height 12 cm [4.7 in]
Software OS Compatibility Windows® Vista, 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016, 2019
Linux 2.6.31 to 4.11.x LTS versions only
Special Notes / Requirements System and Cable Requirements Available PCI Express slot
Note Devices that do not comply with the USB Battery Charging Specification may only receive standard USB power.
What's in the Box 1 - Included in Package PCIe USB 3.0 Card
Low Profile Bracket
SATA to LP4 Cable
Driver CD
Instruction Manual

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Drivers/Downloads

Talk to an Advisor

We are always ready to assist you with any questions you may have.

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Driver(s):

Firmware

Manual(s):

Datasheet

Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

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Frequently Asked Questions

Installation

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

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

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. In the list of extracted files, right-click the Setup.exe file and select 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. Extract the files using the instructions in Step 2.

  1. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  2. Your computer will automatically complete the driver installation and your device should be ready to use.

Prior to installing this device, ensure that your operating system is up to date (for example, you have installed the most recent service pack).

To install the driver:

  1. Download the latest drivers from the StarTech.com website (http://www.startech.com/Support). You can find the part number and product ID on the product’s packaging.

Note: Windows will typically save the files to the Downloads folder that is associated with your user account (for example, C:\Documents and Settings\your_name\My Documents\Downloads).

  1. Once the download is complete, right-click the zip folder that you downloaded, select Extract All, and follow the on-screen instructions.
  2. In the list of extracted files, double-click the Setup.exe file.
  3. Follow the on-screen prompts to install the device drivers and restart the computer when prompted.
  4. Your computer will automatically complete the driver installation and your device should be ready to use.

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:

You should not upgrade your device's firmware if you do not have any issues with the functionality of your device. The only time you should consider an upgrade is if you are experiencing a problem with the device, and you have confirmed that the firmware addresses this problem.  You can confirm this is the case by reviewing the documentation included with the firmware or by consulting with our Technical Support team. Incorrectly upgrading firmware can result in diminished performance so it is best to contact StarTech.com if you would like to perform this operation.

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.

Before You Buy

The USB expansion cards derive power from the PCI or PCI Express slot on the motherboard. When high-powered USB devices are connected to the USB expansion card, the power provided by the slot may not be enough to power all of the devices and you should connect additional sources of power. When you troubleshoot issues, you should connect an additional source of power.

Symptoms that you are experiencing power-related issues include certain devices not working correctly, not all of the devices working at the same time, and certain devices not working at all.

Examples of low-powered USB devices include USB mice, keyboards, and flash drives. An example of a high-powered USB device is an external hard drive that does not have an external source of power.

Compliance and safety

Compliance letters

  • RoHS
    • Language: English
  • WEEE
    • Language: English

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

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