StarTech.com
StarTech.com PEXUSB3S42V 4-Port PCI Express USB 3.2 Gen 1 Card
Best upgrade for desktop users needing more high-speed USB ports.
Expand your computer's connectivity with this versatile PCI Express card, adding four external USB 3.0 ports for high-speed data transfers up to 5 Gbps. It ensures seamless integration with older peripherals through backward compatibility and offers optimized performance with UASP support. The stacked port layout fits low-profile systems, and a dedicated SATA power connector supplies ample power to demanding devices. Enjoy enhanced system performance and reliable connectivity for all your USB peripherals.
$59.94
Owner Satisfaction
4.3
/ 5
Category Rank
887
/ 1290
#887 in Computer Interface Cards & Adapters
Price vs Category Average
-89%
Below average
Host Interface
PCI Express
/ PCI Express
Who it's for
- Power users connecting multiple high-draw external peripherals
- System builders requiring seamless cross-platform driver compatibility
- Legacy desktop users needing faster data transfer speeds
Who should skip it
- Minimalists avoiding extra internal cable management tasks
- Small form factor builders with limited expansion slots
- Performance seekers requiring faster 10 Gbps data transfer rates
Performance breakdown
Data Throughput
UASP support ensures efficient file transfers at full 5 Gbps speeds.
Power Reliability
Dedicated SATA power prevents voltage drops for power-hungry external drives.
System Compatibility
Includes low-profile brackets to fit almost any desktop chassis configuration.
Peripheral Versatility
Seamlessly handles legacy USB 2.0 devices alongside modern high-speed hardware.
Installation Ease
Standard PCIe interface makes upgrading your desktop connectivity a simple task.
Build Integrity
Robust construction designed for long-term stability in demanding workstation environments.
Key Specs
Host Interface
PCI Express
Ports
4x USB 3.0 (USB 3.2 Gen 1)
Maximum Data Transfer Rate
Up to 5 Gbps
Power Connector
SATA Power Connector
Power Output
Up to 900mA per port
Protocol Support
UASP
Compatibility
USB 2.0 and 1.x devices
Form Factor Support
Includes low-profile bracket
Know before you buy
Yes, the card includes a low-profile bracket, making it compatible with both standard and slim computer cases.
Yes, connecting the SATA power cable is required. It ensures each of the four ports can provide the full 900mA of power needed to reliably run external hard drives and other power-hungry peripherals.
Absolutely. The card is fully backward compatible with USB 2.0 and 1.x devices, so you can continue using your older peripherals alongside newer USB 3.0 hardware.
UASP (USB Attached SCSI Protocol) is a feature that allows the card to process data more efficiently, resulting in faster transfer speeds when using compatible storage devices like external SSDs.
In most modern operating systems like Windows or Linux, the card is plug-and-play and will be recognized automatically without the need for manual driver installation.
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$60