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StarTech 4 Port PCI Express PCIe USB 3.0 Card - PS2 - Cables - COMPUTER HARDWARE

StarTech 4 Port PCI Express PCIe USB 3.0 Card


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Retail Price $86
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SKU#: PEXUSB3S4V / ITEM NO: 570295 / BRAND: Startech
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4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - USB 3 PCIe Card - USB 3.0 PCI-e Card

Startech Pexusb3s4v 4 Port Pci Express Pcie Usb 3.0 Card

Product Overview

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 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, add-on USB 3.0 cards, a UASP-enabled enclosure, and a SATA III solid state drive.

Product Specifications

Warranty Information


2 Years

Physical Characteristics

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]


Bus Type

PCI Express

Card Type

Standard Profile (LP bracket incl.)

Chipset ID

NEC uPD720201


USB 3.0

Port Style

Integrated on Card




Type and Rate

USB 3.0 - 5 Gbit/s

UASP Support



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


OS Compatibility

Windows 10 (32/64), 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP (32/64) Windows Server 2012, 2008 R2, 2003

Special Notes / Requirements


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.

System and Cable Requirements

Available PCI Express expansion slot



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)

Packaging Information

Package Quantity


Shipping (Package) Weight

0.2 lb [0.1 kg]

What's in the Box

Included in Package

1 - PCI Express USB 3.0 Card


1 - Low Profile Bracket


1 - Driver CD


1 - Instruction Manual

Brand StarTech
Dimension Product Height 2.7 in [68 mm]
Product Length 3 in [75 mm]
Product Width 0.7 in [19 mm]
Speed Super Speed
Interface USB 3.0
Ports 4
Manufacturer Warranty
1 Year Return to Base Warranty
Manufacturer Contact Info

Our customer service staff are standing by to assist you. Should you have questions about this product, please complete the form below and we'll be in touch soonest possible. We aim to answer your enquiries within 24 hours.

For IMMEDIATE customer service assistance or help with an order please call our Customer Service Team on: 02 9011 2078
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