Startech PEXUSB3S4V User Manual

4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power

StarTech ID: PEXUSB3S4V

The PEXUSB3S4V PCI Express USB 3.0 Card (with SATA Power) adds 4 external USB 3.0 ports to any PCI
Express-enabled computer system with support for data rates up to 5 Gbps, while remaining backward compatible
with USB 2.0 / 1.x devices.

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 requires a compatible
operating system). 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 card uses a "stacked" port layout that places the ports one on top of the other, enabling all four USB 3.0 ports to
be external facing, while still allowing the card to fit into a small form factor/low profile computer system using the
included low profile bracket.

Plus, with a built-in SATA power connector, each USB port can provide up to 900mA of power to devices that draw
power from a host bus connection (500mA for USB 2.0) by connecting to your computer power supply.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Improved Performance with UASP

UASP is supported in Windows® 8, Server 2012 and Linux kernel 2.6.3 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 UASP­enabled StarTech.com enclosure, and a SATA III solid state drive.

Applications

Upgrade an older PCIe-based system with USB 3.0 connectivity, to fully utilize USB 3.0 devices
Expand a system's USB capabilities with four additional external USB ports, for connecting additional
external hard drives, CD/DVD drives, MP3 players, printers, scanners, webcams, game controllers, digital
cameras, etc.

Features

4 external USB 3.0 ports in a stacked layout
UASP support for more efficient data transfer
Fully compliant with USB 3.0 revision 1.0 specifications and Intel xHCI rev0.95 specifications
Built-in optional SATA power connector for bus-powered USB devices
Optionally provides up to 900mA per USB port
Backward compatible with USB 2.0 and USB 1.0/1.1 devices
Compliant with PCI Express 2.0 specifications
Includes a Low Profile/half-height installation bracket

Technical Specifications

Warranty 2 Years
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID NEC uPD720201
Interface USB 3.0
Port Style Integrated on Card
Ports 4
Connector

Type(s)

1 - PCI Express x1 Male

External Ports 4 - USB 3.0 A (9 pin; SuperSpeed) Female
Internal Ports 1 - SATA Power (15 pin) Plug
Type and

Rate

USB 3.0 - 5 Gbit/s

UASP
Support

Yes

OS
Compatibility

Windows XP (32/64-bit)/ Server 2003 (32/64-bit)/ Server 2008 R2/ Vista (32/64-bit)/ 7 (32/64-bit)/ 8
(32/64-bit)

Product
Height

2.7 in [68 mm]

Product
Length

3 in [75 mm]

Product
Weight

1.6 oz [45 g]

Product
Width

0.7 in [19 mm]

Humidity 20% ~ 80% RH
Operating

Temperature

5°C to 50°C (41°F to 122°F)

Storage
Temperature

-25°C to 70°C (-13°F to 158°F)

System and
Cable
Requirements

Available PCI Express expansion slot

Note The maximum throughput of this card is limited by the bus interface. If used with PCI Express Gen

1.0 enabled computers, the max throughput is 2.5 Gbps. If used with PCI Express Gen 2.0 enabled
computers, the max throughput is 5 Gbps.

Package
Quantity

1

Shipping
(Package)
Weight

0.2 lb [0.1 kg]

Included in
Package

1 - PCI Express USB 3.0 Card

Included in
Package

1 - Low Profile Bracket

Included in
Package

1 - Driver CD

Included in
Package

1 - Instruction Manual

Certifications, Reports and Compatibility