StarTech.com

4-Port PCI Express USB 3.0 Card

Add four USB 3.0 ports – three external ports and one internal port – to your computer

Product ID: PEXUSB3S42

  • Expands your computer connectivity with four extra USB 3.0 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
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  • 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
$44.99 USD
260+ In stock
In stock
US: 240 | CA: 20
260+
In stock
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Overview

Here’s a cost-effective solution for adding USB 3.0 connectivity to your computer. This 4-port PCIe USB 3.0 card gives you three external ports and one internal port, for the ultimate connection flexibility.

Enjoy convenient USB 3.0 port availability

With three external USB 3.0 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 3.0 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 3.0 adapter card automatically installs in Windows® 8.1, 8 and 7.

For convenient installation, this PCI Express USB 3.0 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 3.0 card is enhanced with UASP support, which can perform ~70% faster read speed and ~40% faster write speed over traditional USB 3.0, when paired with UASP-enabled enclosure.

UASP speed benefit diagram

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 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

Applications

Enhance the connection capabilities of your PCI Express enabled computer or server

Connect external hard drives, tablets, smartphones, CD/DVD drives, webcams or game controllers to your computer

Connect your flash drive or other devices to the internal USB 3.0 port for a secure connection

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID VIA/VLI - VL805
Industry Standards USB 3.0 Specification Rev. 1.0
PCI Express Base Specification Rev. 2.0
Intel xHCI Specification Rev. 1.0
Interface USB 3.0
Port Style Integrated on Card
Ports 4
Performance
Maximum Cable Length 9.8 ft [3 m]
Maximum Data Transfer Rate 5 Gbps
MTBF 24,000 hours
Type and Rate USB 3.0 - 5 Gbit/s
UASP Support Yes
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 3 - USB Type-A (9 pin) USB 3.0 Female
Internal Ports 1 - SATA Power (15 pin) Plug
1 - USB Type-A (9 pin) USB 3.0 Female
Software
OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Linux 2.6.31 to 4.11.x LTS Versions only
Special Notes / Requirements
Note 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 PCI Express enabled computer or server with an available PCI Express x1 slot or higher (x4, x8, x16)
SATA power connector (recommended, but optional)
Environmental
Humidity 20~80% RH
Operating Temperature 5°C to 50°C (41°F to 122°F)
Storage Temperature -20°C to 60°C (-4°F to 140°F)
Physical Characteristics
Product Height 4.7 in [120 mm]
Product Length 3.4 in [87 mm]
Product Weight 1.9 oz [55 g]
Product Width 0.7 in [19 mm]
Packaging Information
Shipping (Package) Weight 5 oz [141 g]
What's in the Box
Included in Package 1 - 4 Port PCI Express USB 3.0 Card
1 - Low-Profile Bracket
1 - Driver CD
1 - Instruction Manual

Compatibility

View full OS compatibility
Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2008 R2, 2012, 2012 R2, 2016
Linux 2.6.31 to 4.11.x LTS Versions only

Certifications

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Accessories

4-Port PCI Express USB 3.0 Card

Customer Reviews

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1 - 1 of 1 Reviews

(1 star) Great feature if I can get it to work

By:
I wanted to add USB 3 to my HP Z800 with Win 7 Pro 64 bit but it is not working correctly. Confused as it should straight out of the box.
Comment Helpful? Yes - 0 No - 3 Report
Response from StarTech.com:
Barry, Customer Support
Hello Pierre, Thanks for sharing this with us. Hopefully, we can help. With Windows 7, you will want to download and install the latest drivers from our website. We have a very helpful FAQ which can walk you through the entire process from start to finish. https://www.startech.com/faq/vli_usb_3_install_windows_v7810#PEXUSB3S42 Please reach out to our support team if you require any assistance. Thanks