StarTech PEXUSB3S25 2-Port PCIe USB 3.0 Card w UASP

Name: StarTech PEXUSB3S25 2-Port PCIe USB 3.0 Card w UASP
Brand: StarTech
SKU: PEXUSB3S25
Price: 38.13 USD
Availability: InStock

StarTech|

MPN: PEXUSB3S25

UPC: 065030854603

In Stock

$38.13$48.16

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Key Features

2 x USB 3.0 Type-A ports
UASP support for improved storage performance
PCI Express expansion card design
LP4 auxiliary power connector
Low-profile bracket included
USB Battery Charging Specification 1.2 support

Expand a PCIe desktop with two USB 3.0 ports built for faster storage workflows and cleaner system integration. The StarTech PEXUSB3S25 adds SuperSpeed USB connectivity with UASP support, helping compatible SSDs and hard drives deliver better transfer efficiency than standard USB mass storage paths. For IT teams refreshing older desktops, it provides a straightforward way to add modern USB capability without replacing the platform. This card includes LP4 auxiliary power support and a low-profile bracket, so it fits both standard towers and space-constrained small-form-factor systems. It also supports USB Battery Charging Specification 1.2, which makes it useful for charging and powering a wider range of peripherals. The design is especially relevant for business desktops that need reliable external storage access, imaging device connectivity, or serviceable expansion in environments where downtime and clutter matter. For procurement teams, the value is in targeted capability: two ports, faster protocol handling, and hardware that integrates cleanly into existing PCI Express infrastructure. It is a focused upgrade for organizations that need more from a desktop than onboard USB can provide.

Ideal For

Add high-speed USB ports to a business desktop with limited onboard connectivity
Connect external SSDs and hard drives for faster file transfer workflows
Equip compact office PCs with rear-panel USB expansion
Support service desks and imaging stations that rely on USB peripherals

Why This Product

1Adds 2 USB 3.0 ports instead of relying on limited onboard headers
2Includes UASP support for better storage performance than basic USB cards
3Uses LP4 auxiliary power for more stable peripheral operation
4Ships with a low-profile bracket for small-form-factor deployments

Ports

Usb Ports	2 ports
Usb Standard	USB 3.0

Power

Auxiliary Power

LP4 auxiliary power

Design

Form Factor

Low-profile / half-height bracket included

Interface

Host Interface

PCI Express

Performance

Uasp Support	UASP supported
Usb Battery Charging	USB Battery Charging Specification 1.2

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Documentation

Additional pdf1

Additional pdf2

Manufacturer Brochure

User Manual

Frequently Asked Questions

What does UASP improve on this card?▾

UASP improves storage transfer efficiency with compatible USB drives and enclosures, especially when moving large files or using SSD-based external storage.

Does this card fit small desktop cases?▾

Yes. It includes a low-profile bracket, so it can be installed in compact or half-height PCIe systems.

What kind of power connection does it use?▾

The card supports LP4 auxiliary power, which helps provide stable power for connected USB devices.

Can it charge USB peripherals?▾

Yes. It supports USB Battery Charging Specification 1.2, which helps with charging compatible devices.