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Product specifications

StarTech.com 4-Port PCI Express USB 3.0 Card - 5Gbps

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StarTech 4 Port PCI Express USB 3.0 Card - 5Gbps - 3 External and 1 Internal - Native OS Support in Windows 8 and 7 - Standard and Low-Profile (PEXUSB3S42)

Part PEXUSB3S42 · UPC 065030860321

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  • Expands your computer connectivity with four extra USB 3.2 Gen 1 ports (3 external, 1 internal)
  • Easy to install with native OS support in Windows 8.1, 8, 7, and Linux kernel 2.6.31 or later
  • Fits standard or small form-factor computers, low-profile bracket included
  • Data transfer rates up to 5 Gbps plus UASP support
  • Backward compatible with USB 2.0 and 1.x devices
  • Built-in optional SATA power connector provides up to 900mA per USB port
  • PCIe x1 interface, compliant with PCI Express 2.0 specifications

About this product

Add four USB 3.0 (USB 3.2 Gen 1) ports – three external ports and one internal port – to your computer

Here’s a cost-effective solution for adding USB 3.2 Gen 1 connectivity to your computer. This 4-port PCIe USB 3.2 Gen 1 card gives you three external ports and one internal port, for the ultimate connection flexibility.

Enjoy convenient USB 3.2 Gen 1 port availability

With three external USB 3.2 Gen 1 ports you can connect more devices to your computer. The card provides easy access to commonly-used peripherals such as your tablet and external hard drive. It also features an internal USB port that lets you connect a device such as a flash drive inside your computer case, providing added security and convenience.

USB 3.2 Gen 1 gives you fast access to your files with data transfer rates up to 5 Gbps. Plus it's backward compatible with USB 2.0 and 1.x devices, which eliminates the cost and aggravation of upgrading your existing devices.

Get up and running quickly

Setup is a breeze with native operating system support. The USB 3.2 Gen 1 adapter card automatically installs in Windows® 8.1, 8 and 7.

For convenient installation, this PCI Express USB 3.2 Gen 1 card features a dual-profile design that can be installed in almost any type of computer. It comes equipped with a standard profile bracket and also includes a low-profile bracket for installation in small form-factor/half-height systems.

UASP support for more efficient data transfers

This high-performance USB 3.2 Gen 1 card is enhanced with UASP support, which can perform ~70% faster read speed and ~40% faster write speed over traditional USB 3.2 Gen 1, when paired with UASP-enabled enclosure.

The PEXUSB3S42 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Note : UASP (USB Attached SCSI Protocol) is supported in Windows 8.1, 8, Server 2012 and Linux kernel 2.6.37 or later. Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

Manufacturer warranty information

2 Years

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
PCI 2.0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
4

Design

Internal
Yes
Product colour
Black, Stainless steel
Maximum cable length
3 m
Hot-swap
Yes
Certification
CE, FCC

Features

Chipset
2 x Renesas / NEC - µPD720202
Data transfer rate (max)
5 Gbit/s
UASP support
Yes

Operational conditions

Operating temperature (T-T)
5 - 50 °C
Storage temperature (T-T)
-20 - 60 °C
Operating relative humidity (H-H)
20 - 80%

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 Pro, Windows 10 Pro x64, 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 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 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 XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Linux operating systems supported
Yes
Server operating systems supported
Windows Server 2008 R2, Windows Server 2012

Technical details

Compliance certificates
RoHS

Weight & dimensions

Width
15 mm
Depth
167 mm
Height
120 mm
Weight
90 g

Packaging data

Mounting brackets included
Yes
Drivers included
Yes
Manual
Yes
Package width
217 mm
Package depth
147 mm
Package height
37 mm
Package weight
141 g

Logistics data

Harmonized System (HS) code
84733020
Products per master (outer) case
40 pc(s)
Master (outer) case width
455 mm
Master (outer) case length
381 mm
Master (outer) case height
327 mm

Specifications and images: Database Right data-sheet 2026 Icecat. All rights reserved. Supplied as is, without warranty. Specs Icecat · Open Content License

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