StarTech.com 4 Port PCI Express USB 3.0 Card – 3 External and 1 Internal – 5Gbps


Availability: Only 2 left in stock

SKU: 065030860321 Categories: ,


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.

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.

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.

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 .

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.

More from the Manufacturer

  • PCIe x1 interface, compliant with PCI Express 2.0 specifications
  • Built-in optional SATA power connector provides up to 900mA per USB port
  • Backward compatible with USB 2.0 and 1.x devices
  • Data transfer rates up to 5 Gbps plus UASP support
  • Fits standard or small form-factor computers, low-profile bracket included
  • Easy to install with native OS support in Windows 8.1, 8, 7, and Linux kernel 2.6.31 or later
  • Expands your computer connectivity with four extra USB 3.0 ports (3 external, 1 internal)

Additional information

Weight 53.9000 g
Dimensions 0.7000 × 4.7000 in
Package Contents

4-Port PCI Express USB 3.0 Card – 5Gbps 1 x Low-Profile Bracket 1 x Driver CD 1 x Instruction Manual

Platform Supported


Number of SATA Ports


Product Color


UASP Support


Operating System Supported

Windows XP,Windows Vista,Windows 7,Windows 8,Windows 8.1,Windows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server 2019,Linux,Windows 10,Windows 11

Number of USB 3.2 Ports


Environmental Certification


Environmentally Friendly


Host Interface

PCI Express x1

Limited Warranty

2 Year

Total Number of USB Ports


Packaged Quantity


Form Factor

Plug-in Card

Product Type

USB Adapter


3.40" (86.36 mm)



Country of Origin






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