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Item#: N82E16815158294

StarTech 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power Model PEXUSB3S4

  • PCI Express to USB Card
  • USB 3.0
  • Up to 5.0 Gbps Data Transfer Rate
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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  • newegg SuperSpeed USB 3.0 Quickly add four USB 3.0 ports in total (3x External, 1x Internal) to your PCI-e enabled computer with StarTech’s 4 Port SuperSpeed USB 3.0 PCI Express Card PEXUSB3S4. SuperSpeed USB 3.0 connectivity provides up to 5 Gbps of bandwidth and 80% more power than USB 2.0.
  • newegg Dual Profile Design With a low profile/half-height installation bracket included, the StarTech PEXUSB3S4 fits into full or low profile/small form factor (SFF) systems.
  • newegg SATA Power Connector The StarTech PEXUSB3S4 incorporates a SATA power connector for compatibility with newer systems that have limited or no LP4 power supply connections, to ensure maximum power for USB devices.

Learn more about the STARTECH PEXUSB3S4




PCI Express to USB Card
External USB Ports
3x USB Ports
Internal USB Ports
1x USB Port
Internal Ports
1 x SATA
USB 3.0
Data Transfer Rate
Up to 5.0 Gbps
Operating Systems Supported
Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ 7(32/64-bit)/ Server 2008 R2

Physical Spec

0.87" x 3.54" x 2.76"
2.12 oz


Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95 specifications, with transfer rates up to 5 Gbps

Built-in SATA power connector for high-powered USB devices, suitable for systems with limited or no LP4 power supply connections

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

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

Compatible with Dell OptiPlex 3010 / HP Pro 6300

4 Port SuperSpeed USB 3.0 PCI Express Card with UASP / 4 Port USB 3.0 Controller Card

4 Port (3 External/1 Internal) USB 3.0 Card / USB 3 PCIe Card / PCIe USB 3.0 Card

SATA Powered USB 3.0 PCI Express Card / PCI Express USB 3.0 Expansion Card w/ UASP

Desktop PCIe USB 3 Card / Add USB 3.0 Ports to a Desktop

USB 3.0 UASP Card includes a Low Profile bracket

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the STARTECH PEXUSB3S4

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  • Eli J.
  • 2/6/2014 6:38:44 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsNo Win 7 Driver/Software for UASP

Pros: Nothing special without UASP support.

Cons: Found out the hard way that this card (and related external enclosures from StarTech of which I also bought one) do not come with anything other than standard USB 3.0 drivers. That means that unless you have Win 8 (which supports UASP natively) or can find a third party program that supports are out of luck.

Other Thoughts: The fact that this product does not support UASP in Win 7 is ridiculous. StarTech is depending on the end user to get Win 8 basically.

Also, Newegg did not list this fact which is rather sad!

Did you find this review helpful? Yes No

  • Anne A.
  • 7/15/2013 10:32:41 AM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsWorks great with Windows Server 2012 !

Pros: Plugged this card into a Dell PowerEdge T320 PCIe X1 slot. Connected the card's SATA power connector to the computer's internal SATA power port.

Windows Server 2012 installed drivers automatically, no need for the driver CD!

First test was with a somewhat older 750 GB GoFlex USB 3.0 drive. Most (NEC based) USB 3.0 cards fail to power this drive, even with supplemental power on the card. Fortunately this card powered that drive right up!

This card uses the TI TUSB7340 USB 3.0 chip, not the NEC chip that's so popular elsewhere. Personally I've had nothing but trouble with NEC/Renesas based USB 3.0 cards (firmware updates, flaky drivers)., so this card is a refreshing change for the better!

Cons: None.

Other Thoughts: Here's some benchmarking results, copying about 40GB of video files to the Dell server's H710p RAID 6 array with 4 SAS 6gbps drives:

- 750GB WD GoFlex (1st generation USB 3.0 drive): 65MB/s
- 1TB WD MyPassport (purchased June 2013): 105MB/s
- Mushkin Ventura Pro flash drive: 145MB/s
- Patriot Magnum flash drive: 220MB/s (Nice!)

For comparison, using the USB 2.0 ports on this machine yield a max throughput of 32MB/s

Did you find this review helpful? Yes No

  • Anonymous
  • 6/23/2012 10:20:04 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsNo frills works fine

Pros: Just plugged and played in Ubuntu server, no drivers, no problems.

3 ports plus 1 internal.

Cons: None yet.

Other Thoughts: Felt compelled to review given the only other negative review. Your mileage may vary.

1 out of 1 people found this review helpful. Did you? Yes No

  • gregory b.
  • 5/23/2012 1:30:08 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDOA

Pros: Wouldn't know

Cons: Showed up DOA

Manufacturer Response:

We apologize for the experience that you have had with your PEXUSB3S4 & for any inconvenience this may have caused. It seems that this unit is not functioning as it should and we would like to assist you in replacing it as quickly as possible. Please contact our Customer Advisory Team either by email at or by phone at 1-800-265-1844 and we will assist you with replacing the unit. Customer Advisory Team

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Item#: N82E16815158294
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