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STARTECH.COM

STARTECH.COM PEXUSB3S4V

USB Adapter - PCI Express x1 - 5 GB/s - Plug-in Card - Green - TAA Compliant

MPNPEXUSB3S4VAdaptersUpdated

Key facts

Part number
PEXUSB3S4V
Brand
STARTECH.COM
Category
Adapters
Price
AUD 109.99≈ USD 76.75 RRP
Availability
On request — ask for a quote

The STARTECH.COM PEXUSB3S4V is an adapter listed on tprice.co. RRP AUD 109.99≈ USD 76.75 (Oct 2026). Request a quote for volume pricing, or sell us your used adapters.

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.

Improved Performance with UASP

UASP is supported in Windows® 8 andServer 2012. 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.

  • USB Adapter plug-in with PCI Express x1 host interface
  • Can connect up to 4 USB peripherals
  • Connect USB-enabled devices via 4 USB ports
  • Provides 4 USB ports for responsive and expanded device connections

Specifications

General

Host Interface
PCI Express x1
Data Transfer Rate
5 GB/s
UASP Support
Yes
Total Number of USB Ports
4
Number of SATA Ports
1
Number of USB 3.2 Ports
4

Windows 10

Additional Information
OS Compatibility: Windows® XP, Vista, 7, 8, 8.1, 10 Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
Package Contents
PCI Express USB 3.0 Card1 x Low Profile Bracket1 x Driver CD1 x Instruction Manual
Platform Supported
PC
Environmentally Friendly
Yes
TAA Compliant
Yes
Weight (Approximate)
68 g
Form Factor
Plug-in Card
Length
76.2 mm
Height
68.6 mm
Width
17.8 mm
Product Color
Green
Product Type
USB Adapter

Manufacturer Website Address

Product Name
PCI Express USB 3.0 Card

Price history

Latest
AUD 109.99≈ USD 76.75
Oct 2026
Lowest recorded
AUD 109.99≈ USD 76.75
Highest recorded
AUD 109.99≈ USD 76.75
Recorded
2026
1 price point

AUD 109.99 rrp, recorded

Why buy from Prology

  • Tested before dispatchEvery item is checked by our technicians before it ships.
  • Warranty includedParts are covered by a Prology warranty – ask us for the terms.
  • Fast shippingDispatched from our Australian and US locations.
  • Real people, quick repliesQuotes and answers within 1 business day.

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