StarTech.com 2 Port PCI Express PCIe SuperSpeed USB 3.0 Card Adaptor with UASP L PEXUSB3S25

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. 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.

The StarTech.com Advantage

- 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

Features


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



Design


Internal

Yes


Maximum cable length

3 m


Certification

CE, FCC



Weight & dimensions


Height
0 mm


Width
mm


Depth

82 mm


Weight

51 g



Logistics data


Harmonized System (HS) code

84733020



Technical details


Sustainability certificates

RoHS



Features


Chipset

Renesas / NEC - µPD720202


Data transfer rate (max)

5 Gbit/s


UASP support

Yes



Operational conditions


Operating temperature (T-T)

0 - 50 °C


Operating relative humidity (H-H)

5 - 85


Storage temperature (T-T)

-20 - 60 °C



Ports & interfaces


USB 3?2 Gen 1 (3?1 Gen 1) Type-A ports quantity

2


Host interface

PCIe


Expansion card form factor

Full-height / Low-profile


Output interface

USB 3.2 Gen 1 (3.1 Gen 1)


Expansion card standard

PCIe 2.0



System requirements


Server operating systems supported

Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019


Linux operating systems supported

Yes



Packaging data


Package height

30 mm


Cables included

SATA


Package depth
1 mm


Package width
3 mm


Package weight
4 g


Manual

Yes


Drivers included

Yes