Introduction

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

Ports & interfaces

Host interface

PCIe

Output interface

USB 3.2 Gen 1 (3.1 Gen 1)

Expansion card form factor

Full-height / Low-profile

Expansion card standard

PCIe 2.0

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity

2

Design

Internal

Y

Maximum cable length

3 m

Certification

CE, FCC

Features

Chipset

Renesas / NEC - µPD720202

Data transfer rate (max)

5 Gbit/s

UASP support

Y

Operational conditions

Operating temperature (T-T)

0 - 50 °C

Storage temperature (T-T)

-20 - 60 °C

Operating relative humidity (H-H)

5 - 85%

Technical details

Sustainability certificates

RoHS

System requirements

Windows operating systems supported

Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 IOT Core,Windows 10 Pro,Windows 10 Pro x64,Windows 10 x64,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64,Windows Vista,Windows Vista Business,Windows Vista Business x64,Windows Vista Enterprise,Windows Vista Enterprise x64,Windows Vista Home Basic,Windows Vista Home Basic x64,Windows Vista Home Premium,Windows Vista Home Premium x64,Windows Vista Ultimate,Windows Vista Ultimate x64,Windows Vista x64

Linux operating systems supported

Y

Server operating systems supported

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

Weight & dimensions

Width

18 mm

Depth

82 mm

Height

120 mm

Weight

51 g

Packaging data

Cables included

SATA

Drivers included

Y

Manual

Y

Package width

143 mm

Package depth

171 mm

Package height

30 mm

Package weight

154 g