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StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power - Dual Port USB 3 PCIe C...

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Manufacturer part PEXUSB3S25 | Dell part A7408139 | Order Code a7408139 | StarTech.com
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StarTech.com 2 Port PCI Express (PCIe) USB 3.0 Card with UASP - LP4 Power

  • Increase efficiency of your USB 3.0 devices with up to 5 Gbps of bandwidth
  • Fits into full or low profile/small form factor (SFF) systems, with a dual profile design
  • Power high-powered USB devices as necessary, with the optional LP4 power connector
  • 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 LP4 power connector provides up to 900mA per USB port
  • Supports USB Battery Charging Specification 1.2
StarTech.com 2 Port PCI Express (PCIe) USB 3.0 Card with UASP - LP4 Power

Media

Increase efficiency of your USB 3.0 devices with up to 5 Gbps of bandwidth

The PEXUSB3S25 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 LP4 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).

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.

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.

Product Features and Applications

  • 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 LP4 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
  • Backward compatible with USB 2.0 and USB 1.0/1.1 devices
  • Includes a Low Profile/half-height installation bracket

Add 2 SuperSpeed USB 3.0 ports to your PCI Express-enabled PC. The PEXUSB3S25 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 LP4 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 (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.

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.

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.

Quick Specs


Device Type
USB adapter
Form Factor
Plug-in card
Interface (Bus) Type
PCI Express x1
Ports
USB 3.0 x 2
Dimensions (WxDxH)
1.9 cm x 6.7 cm x 12.1 cm
Weight
90 g
Data Link Protocol
USB, USB 2.0, USB 3.0
Data Transfer Rate
5 Gbps
Compliant Standards
USB 1.1, USB 2.0, USB 3.0
System Requirements
Microsoft Windows Server 2008 R2, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Vista / 7 / 8 / 8.1 / 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Linux 2.6.31 - 4.11.x LTS versions only
Manufacturer Warranty
2-year warranty
Designed For
P/N: CFASTRWU3, S251SMU33EP, ST103008U2C, ST3300GU3B, ST4300U3C1, ST4300U3C1B, ST4300U3C3, ST53004U1C, ST7300U3M, ST93007U2C, UNI251BMU33, USB3S2ESATA3

General


Device Type
USB adapter
Form Factor
Plug-in card
Interface (Bus) Type
PCI Express x1

Networking


Ports
USB 3.0 x 2
Connectivity Technology
Wired
Data Link Protocol
USB, USB 2.0, SuperSpeed USB 3.0
Data Transfer Rate
5 Gbps
Compliant Standards
USB 1.1, USB 2.0, USB 3.0

Expansion / Connectivity


Interfaces
2 x USB 3.0 - 9 pin USB Type A (external)

Miscellaneous


Included Accessories
Low-profile bracket
Compliant Standards
FCC, RoHS

Software / System Requirements


Software Included
Drivers & Utilities
OS Required
Microsoft Windows Server 2008 R2, Microsoft Windows Server 2012, Microsoft Windows Server 2012 R2, Microsoft Windows Vista / 7 / 8 / 8.1 / 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Linux 2.6.31 - 4.11.x LTS versions only

Dimensions & Weight


Width
1.9 cm
Depth
6.7 cm
Height
12.1 cm
Weight
90 g

Manufacturer Warranty


Service & Support
Limited warranty - 2 years

Environmental Parameters


Min Operating Temperature
0 °C
Max Operating Temperature
50 °C
Humidity Range Operating
5 - 85%

Compatibility Information


Designed For
P/N: CFASTRWU3, S251SMU33EP, ST103008U2C, ST3300GU3B, ST4300U3C1, ST4300U3C1B, ST4300U3C3, ST53004U1C, ST7300U3M, ST93007U2C, UNI251BMU33, USB3S2ESATA3

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