STARTECH 

PEXUSB3S25 StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power

Mfg Part Number:  PEXUSB3S25  
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Price: $54.26
Quantity:
In Stock: 896
Last Updated: May 03, 2025
No Sales Tax except these states
, PO and Wire.

The PEXUSB3S25 2-Port PCI Express USB 3.2 Gen 1 Card lets you add two USB 3.2 Gen 1 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 3.2 Gen 1 bus-powered devices (500mA for USB 2.0).
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 when paired with a (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 3.2 Gen 1 adapter is compliant with USB 3.2 Gen 1 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.
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 3.2 Gen 1 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 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

More from the Manufacturer

More from the Manufacturer

Main Specification
General Information
Manufacturer StarTech.com
Manufacturer Part Number PEXUSB3S25
Manufacturer Website Address http://www.startech.com
Brand Name StarTech.com
Product Name 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP
Packaged Quantity 1 Each
Product Type USB Adapter
Technical Information
Host Interface PCI Express x1
Media & Performance
UASP Support Yes
Interfaces/Ports
Total Number of USB Ports 2
Number of USB 3.2 Ports 2
Software
Operating System Supported Windows Vista
Operating System Supported Windows Server 2012
Operating System Supported Windows 11
Operating System Supported Windows Server 2016
Operating System Supported Windows 7
Operating System Supported Windows 10
Operating System Supported Windows Server 2008 R2
Operating System Supported Windows 8.1
Operating System Supported Windows 8
Operating System Supported Windows Server 2019
Physical Characteristics
Color Family Black
Product Color Black
Form Factor Plug-in Card
Height 4.7"
Width 0.7"
Length 3.2"
Weight (Approximate) 1.76 oz
Miscellaneous
Package Contents
  • 2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP
  • 1 x Low Profile Bracket
  • 1 x SATA to LP4 Cable
  • 1 x Driver CD
  • 1 x Instruction Manual
Additional Information 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
Platform Supported PC
Platform Supported Linux
Country of Origin China
Environmentally Friendly Yes
Warranty
Limited Warranty 2 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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