StarTech 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP

StarTech 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP

StarTech 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP

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Expected availability: 7-10 business days

Product Highlights

  • USB 3.0 Interface
  • Enhanced with UASP Support
  • Built-In SATA Power Connector
  • 5 Gb/s Data Transfer Rate
  • Stacked Port Layout
  • Backwards Compatible with USB 2.0
  • Compliant with PCIe 2.0 Specifications
  • Included Low-Profile Bracket
  • CE, FCC, & RoHS Compliant
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StarTech PEXUSB3S4V Overview

  • 1Description

The 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP from StarTech adds 4 external USB 3.0 ports to any PCIe-enabled computer system with support for data rates up to 5 Gb/s. The card uses a "stacked" port layout that places the ports one on top of the other, enabling all four USB 3.0 ports to be external facing, while still allowing the card to fit into a small form factor/low-profile computer system using the included low-profile bracket. Additionally, with a built-in SATA power connector, each USB port can provide up to 900mA of power to devices that draw power from a host bus connection (500mA for USB 2.0) by connecting to your computer's power supply.

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. 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 with less wait time on data transfers. UASP is supported in Windows 8, Server 2012, and Linux kernel 2.6.3 or later.

Note: UASP require a compatible operating system.

The USB 3.0 PCIe card features 4 external USB 3.0 ports using a space-saving stacked layout
Provides quick file transfers and performs up to 70% faster than traditional USB 3.0 when used with a UASP-supported enclosure
Power high-powered USB devices as necessary, with the built-in optional SATA power connector
UASP support for more efficient data transfer
Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95 specifications
Optionally provides up to 900mA per USB port
Backwards compatible with USB 2.0 and USB 1.0/1.1 devices
Compliant with PCIe 2.0 specifications
Includes a low-profile/half-height installation bracket


Upgrade an older PCIe-based system with USB 3.0 connectivity to fully utilize USB 3.0 devices
Expand a system's USB capabilities by adding four additional external USB ports for connecting additional external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital cameras, and more
UPC: 065030848961
In the Box
StarTech 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP
  • Low-Profile Bracket
  • Driver CD
  • 2-Year Limited Warranty
  • Table of Contents
    • 1Description

    StarTech PEXUSB3S4V Specs

    Bus Type PCIe
    Card Type Standard profile
    Chipset ID NEC uPD720201
    Interface USB 3.0
    Port Style Integrated on card
    Ports 4
    Connector Type 1 x PCIe x1 male
    External Ports 4 x USB 3.0 A (9-pin; SuperSpeed) female
    Internal Ports 1 x SATA power (15-pin) plug
    Type and Rate USB 3.0 - 5 Gb/s
    UASP Support Yes
    OS Compatibility Windows XP (32/64-bit)/Server 2003 (32/64-bit)/Server 2008 R2/Vista (32/64-bit)/7 (32/64-bit)/8 (32/64-bit)
    Relative Humidity 20 ~ 80%
    Operating Temperature 41 to 122°F (5 to 50°C)
    Storage Temperature -13 to 158°F (-25 to 70°C)
    Certifications CE, FCC, and RoHS compliant
    System Requirements
    System and Cable Requirements Available PCIe expansion slot
    Physical Characteristics
    Dimensions (L x W x H) 3.0 x 0.7 x 2.7" (76.2 x 17.7 x 68.5 mm)
    Weight 1.6 oz (45.3 g)
    Packaging Info
    Package Weight 0.3 lb
    Box Dimensions (LxWxH) 6.4 x 5.1 x 0.9"
    Note: The maximum throughput of this card is limited by the bus interface. If used with PCIe Gen 1.0 enabled computers, the max throughput is 2.5 Gb/s. If used with PCIe Gen 2.0 enabled computers, the max throughput is 5 Gb/s.

    StarTech PEXUSB3S4V Reviews

    4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP is rated 4.8 out of 5 by 4.
    Rated 4 out of 5 by from Works as advertised, easy installation and driver setup Added this to an old Dell XPS to use a new USB3 external hard drive. Transfers files only about 2.5 times the speed when used in a USB2 port but that's because the with the news drives, you never know what disk is actually in the case (WD and Segate won't tell you, they only quote the speed of the interface which means nothing without knowing how fast the mechanism inside is!). Startech tech support is first rate. I bought this for my home computer after replacing a no name card that did not work with this at the office. The only negative is that actually plugging in the USB cable is difficult due to the port taking up the whole width of the standard slot. The metal pieces between the ports get in the way. Would work much better if the ports were rotated 90 degrees. The only
    Date published: 2016-01-18
    Rated 5 out of 5 by from I'm glad I took the chance I have an HP Slimline so I used the low profile bracket and noticed the same problem as another review with the down brace in the way of the ports, a pair of tin snips fixed that. If you want to power accessories you'll need a 15 pin SATA power Y splitter cable (1 male, 2 female ends). Ran the setup from included CD in Windows 10 and all is good. This is a great little card. Just don't be afraid to do some modifications if you have a small case.
    Date published: 2017-01-12
    Rated 5 out of 5 by from Good USB 3.0 Card Installation in HP Z220 workstation was simple except I needed a SATA power extender cable so it could power connected devices. The cable I purchased was 12 and just long enough. 18 would have been better.
    Date published: 2016-12-23
    Rated 5 out of 5 by from Slim and easy Works great in small form factor machines, gives USB 3.0 to older systems for devices that require the extra power.
    Date published: 2015-07-29
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