StarTech.com
Discontinued

4 Port SuperSpeed USB 3.0 PCI Express Card with UASP - SATA Power

Add 4 USB 3.0 ports to your desktop computer through a PCI Express expansion slot

Product ID: PEXUSB3S4

  • Adds four USB 3.0 ports in total; 3x External, 1x Internal
  • Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95 specifications, with transfer rates up to 5 Gbps
  • UASP support for more efficient data transfer
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  • Built-in optional SATA power connector for bus-powered USB devices
  • Optionally provides up to 900mA per USB port
  • Backward compatible with USB 2.0 and USB 1.0/1.1 devices
  • Compliant with PCI Express 2.0 specifications
  • Includes a Low Profile/half-height installation bracket
£0.00 GBP exc VAT
£0.00 GBP inc VAT
Not Available
May be in stock with partners

Overview

The PEXUSB3S4 4-Port PCI Express SuperSpeed USB 3.0 Card (with SATA Power) adds 3 external USB 3.0 ports and an internal USB 3.0 port to any PCI Express-enabled computer system. With SuperSpeed USB 3.0, you can reach data transfer speeds up to 5 Gbps, while still being backward compatible with existing USB 2.0 devices at 480Mbps.

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 requires a compatible operating system). 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.

With a built-in SATA power connector, each USB port can provide up to 900mA of power to USB 3.0 devices (500mA for USB 2.0) by connecting to your computer power supply. 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, Server 2012 and Linux kernel 2.6.3 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.

The StarTech.com Advantage

  • SuperSpeed USB 3.0 connectivity at up to 5 Gbps and 80% more power than USB 2.0
  • Fit into standard or low profile systems, with a dual profile design
  • Ensure sufficient power for your USB devices with the integrated SATA power connector

Applications

Upgrade an older PCIe-based system with USB 3.0 connectivity, to fully utilize USB 3.0 devices

Ideal for newer computer systems with only SATA power connectors, or a limited number of older LP4 power connectors

Expand a system's USB capabilities with three additional external USB ports

Connect additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, etc. to a computer system through USB 3.0

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID Texas Instruments - TUSB7340
Interface USB 3.0
Ports 4
Performance
Maximum Data Transfer Rate 5 Gbps
UASP Support Yes
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 3 - USB Type-A (9 pin) USB 3.0 Female
Internal Ports 1 - SATA Power (15 pin) Plug
1 - USB Type-A (9 pin) USB 3.0 Female
Software
OS Compatibility Windows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64)
Windows Server® 2012, 2008 R2, 2003
Linux 3.5
Special Notes / Requirements
Note The maximum throughput of this card is limited by the bus interface. If used with PCI Express Gen 1.0 enabled computers, the max throughput is 2.5 Gbps. If used with PCI Express Gen 2.0 enabled computers, the max throughput is 5 Gbps.
System and Cable Requirements Available PCI Express expansion slot
Environmental
Humidity 20% ~ 80% RH
Operating Temperature 5°C to 50°C (41°F to 122°F)
Storage Temperature -25°C to 70°C (-13°F to 158°F)
Physical Characteristics
Product Height 22 mm [0.9 in]
Product Length 90 mm [3.5 in]
Product Weight 60 g [2.1 oz]
Product Width 70 mm [2.8 in]
Packaging Information
Shipping (Package) Weight 190 g [6.7 oz]
What's in the Box
Included in Package 1 - PCI Express USB 3.0 card
1 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual

Compatibility

View full OS compatibility
Windows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64)
Windows Server® 2012, 2008 R2, 2003
Linux 3.5

Certifications

Related Products

2 port PCI Express SuperSpeed USB 3.0 Card with UASP Support - 1 Internal 1 External
PEXUSB3S11
2 port PCI Express SuperSpeed USB 3.0 Card with UASP Support - 1 Internal 1 External

Add one internal and one external SuperSpeed USB 3.0 to your PC

£40.99 exc VAT
£49.19 inc VAT
28+ In stock

Accessories

Product Support

Frequently Asked Questions

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.

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:

4 Port SuperSpeed USB 3.0 PCI Express Card with UASP - SATA Power

Customer Reviews

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1 - 5 of 5 Reviews

(5 stars) Excellent Card!

By:
Have used this card since March 2013 - been working great for 2 years and 5 months. No problems. I use USB 2.0 and USB 3.0 devices on it all the time, plus a variety of different flash drives that are mostly USB 2.0. It's fast with the USB 3.0 stuff, and does great with the 2.0 as well. Would get this card again in a heartbeat. Using it under Win 7 x64 in a PCI-e x8 slot (with x4 link).
Quality of Product (5/5)
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(5 stars) It just works!!!

By:
After careful consideration, I purchased a different USB 3.0 card, primarily because of the price. It didn't work so I returned it and purchased this Startech card. This card is Windows 8.1 compatible and worked as soon as I installed it. I did not install with the included CD, I just downloaded the most recent drivers from Startech.com. MicroCenter will match online prices so look into that. Overall, it just works!
Quality of Product (5/5)
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(5 stars) Works Great!

By:
Easy to install, runs perfectly. Allowed the four ports in the front and powered too.
Quality of Product (5/5)
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(5 stars) Rock solid Windows 7 support

By:
This card uses the TI (Texas Instruments) USB controller rather than the NEC one which almost everything else has. I got two cards with NEC chips in, and my experience with their Windows 7 drivers was very frustrating. These worked first time and flawlessly since.
Quality of Product (5/5)
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(5 stars) Great for Linux Mint

By:
I'm running Linux Mint on a Dell Inspiron Core 2 Duo. I bought this USB 3.0 express card about three weeks ago through Amazon with the recommended (by Amazon) SATA power splitter and extension. It came with a driver CD which included some legacy drivers for Red Hat and Suse Linux. I was very pleased to find out (Googled it) that Linux has had NATIVE (built in) support for USB 3.0 for several years. I went to the Bios setup after physical installation in case the card needed some detection and exited it with Save. Tested it with my USB 3.0 2-TB hard drive and USB 3.0 has worked fine without further configuration. It would be helpful if (1) the packaging or product description indicated native Linux compatibility and details of power requirements and (2) there was a step-by-step description for Linux installation in the user manual, including changing the alternate end plate and whether the Bios setup must be opened.
Quality of Product (5/5)
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