StarTech.com 2 Port USB 3 PCIE Controller Card with Uasp 5GBPS USB 3 Card

StarTech.com PEXUSB3S24

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Manufacturer Part#  PEXUSB3S24

UPC Code: 065030855587

Provantage Code:  STR93C4

Condition:  Factory New

  • Product Type: USB Adapter
  • Host Interface: PCI Express
  • Form Factor: Plug-in Card
  • Length: 2.4"
  • TAA Compliant: Yes

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StorageI/O and Storage ControllersUSB/Firewire Adapters

StarTech.com PEXUSB3S24 Specifications

    2 Port USB 3 PCIE Controller Card with Uasp 5GBPS USB 3 Card

At a Glance

    Rear View
    • Provides two external USB 3.0 ports with UASP support
    • Supports data rates up to 5 Gbps
    • Compliant with PCI Express 2.0 specifications
    • Optional SATA power connector provides up to 900mA per USB port
    • Supports USB Battery Charging Specification 1.2
    • Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications


    The PEXUSB3S24 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 SATA 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. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. 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.

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General Information
Product Name2 Port USB 3 PCIE Controller Card with Uasp 5GBPS USB 3 Card
Manufacturer Part NumberPEXUSB3S24
Packaged Quantity1
Product TypeUSB Adapter
Technical Information
Host InterfacePCI Express
Total Number of USB Ports2
Number of USB 3.0 Ports2
Physical Characteristics
Form FactorPlug-in Card
Platform SupportedPC


Environmentally FriendlyYes
TAA CompliantYes
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Supplies/Accessories for StarTech.com PEXUSB3S24

StarTech.com 6FT Black USB Super Speed USB 3.0 Cable A to B M/M

Mfg Part# USB3SAB6BK

The Following Are Compatible With StarTech.com PEXUSB3S24

StarTech.com 7-Port Industrial USB 3.0 Hub with ESD Protection

Mfg Part# ST7300USBME

StarTech.com USB 3.0 Card Reader/Writer for CFast 2.0 Cards


StarTech.com 7-Port SuperSpeed USB 3.0 Hub with Power Adapter

Mfg Part# ST7300USB3B

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