StarTech.com PEXUSB3S24 2-Port PCIe USB 3.0 Card Adapter with UASP - SATA Power - 5Gbps
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Product Features
Technical Overview
This USB 3.0 adapter card operates on a PCI Express x1 host interface, compliant with PCI Express 2.0 specifications for reliable system integration. The card implements the USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications, ensuring standards-based compatibility across a wide range of computing platforms.
The adapter supports USB Battery Charging Specification 1.2, allowing compatible devices to charge efficiently when connected. Environmental compliance includes EU RoHS certification and adherence to Restriction of Hazardous Substances (RoHS) 2, Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and Waste Electrical and Electronic Equipment Directive (WEEE) requirements.
Relevant factors for this section include Host Interface, UASP Support. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This adapter card provides a straightforward solution for adding modern USB 3.0 connectivity to systems lacking native SuperSpeed USB ports. The inclusion of UASP support delivers tangible performance benefits for compatible storage devices, while the optional SATA power connector ensures reliable operation of power-hungry peripherals.
Enhanced Performance with UASP
USB Attached SCSI Protocol support reduces CPU overhead during data transfers, enabling faster file operations and improved system responsiveness when using compatible USB 3.0 storage devices.
- Reduced CPU utilization
- Faster data transfer operations
- Improved system efficiency
Flexible Power Management
The optional SATA power connector provides supplemental power to USB ports, ensuring stable operation of bus-powered devices that require more current than the PCIe slot can deliver alone.
- Up to 900mA per USB port
- Stable power for external drives
- Prevents voltage drop issues
Broad System Compatibility
Comprehensive operating system support includes Windows Vista through Windows 10, multiple Windows Server editions, and Linux distributions, making this adapter suitable for diverse IT environments.
- Windows desktop and server support
- Linux compatibility
- Backward compatible with USB 2.0/1.1
Deployment / Use Cases
The PEXUSB3S24 adapter card serves as an effective connectivity upgrade for desktop workstations, servers, and specialized computing systems that require additional high-speed USB ports. IT administrators can deploy this card to extend the usable lifespan of existing hardware by adding modern USB 3.0 capabilities without requiring complete system replacement.
Common deployment scenarios include adding external backup drives to servers, connecting high-speed peripherals to point-of-sale systems, and expanding connectivity on industrial computers. The low-profile bracket included with the adapter enables installation in small form factor cases, while the green PCB color provides visual distinction in multi-card configurations.
Server Connectivity Expansion
Add high-speed USB 3.0 ports to servers for external backup drives, security dongles, or diagnostic tools while maintaining compatibility with existing USB 2.0 devices.
- External backup solutions
- Security key connectivity
- Maintenance and diagnostic access
Workstation Peripheral Support
Expand connectivity on desktop workstations for high-speed external storage, video capture devices, or specialized peripherals that benefit from USB 3.0 bandwidth.
- External SSD connectivity
- Video capture and streaming
- Specialized industrial devices
Physical Profile
This plug-in card features a compact design measuring 4.70" in height, 0.70" in width, and 2.60" in length (119.38 mm x 17.78 mm x 66.04 mm), with an approximate weight of 1.41 oz (40 g). The green PCB provides visual identification in multi-card systems, while the included low-profile bracket enables installation in both standard and small form factor cases. The card's dimensions ensure compatibility with most desktop and server chassis while providing sufficient space for the SATA power connector and USB port circuitry.
- Width
- 0.70" (17.78 mm)
- Height
- 4.70" (119.38 mm)
- Weight
- 1.41 oz (40 g)
- Length
- 2.60" (66.04 mm)
What's in the Box
The package includes all necessary components for installation and operation of the USB 3.0 adapter card.
Highlights
- Adds two external SuperSpeed USB 3.0 ports with UASP support
- Achieves data transfer rates up to 5 Gbps for compatible devices
- Includes optional SATA power connector delivering up to 900mA per USB port
- Compliant with PCI Express 2.0 specifications for reliable integration
- Supports USB Battery Charging Specification 1.2 for efficient device charging
- Fully backward compatible with USB 2.0 and USB 1.0/1.1 devices
- Includes low-profile bracket for small form factor case installation
- Supported on Windows Vista through Windows 10 and multiple Windows Server editions
- Linux compatible for cross-platform deployment flexibility
- Backed by a 2-year limited warranty from StarTech.com
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | PEXUSB3S24 |
| Brand Name | StarTech.com |
| Product Name | 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power |
| Packaged Quantity | 1 Each |
| Product Type | USB Adapter |
| Technical Information | |
| Host Interface | PCI Express x1 |
| Media & Performance | |
| UASP Support | Yes |
| Interfaces/Ports | |
| Total Number of USB Ports | 2 |
| Number of USB 3.2 Ports | 2 |
| Number of SATA Ports | 1 |
| Software | |
| Operating System Supported | Windows Vista,Windows 7,Windows 8,Windows 8.1,Windows 10,Windows Server 2008 R2,Windows Server 2012,Windows Server 2016,Windows Server 2019,Linux |
| Physical Characteristics | |
| Color Family | Green |
| Product Color | Green |
| Form Factor | Plug-in Card |
| Height | 4.70" (119.38 mm) |
| Width | 0.70" (17.78 mm) |
| Length | 2.60" (66.04 mm) |
| Weight (Approximate) | 1.41 oz (40 g) |
| Miscellaneous | |
| Package Contents | 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power 1 x Low Profile Bracket 1 x Driver CD 1 x Instruction Manual |
| Platform Supported | PC,Linux |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What systems are compatible with this USB 3.0 adapter card?
The PEXUSB3S24 adapter card requires a PCI Express x1 slot and is compatible with desktop computers and servers running Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Server 2008 R2, Windows Server 2012, Windows Server 2016, Windows Server 2019, or Linux. The card includes both standard and low-profile brackets to fit various case sizes.
What is UASP support and how does it benefit performance?
UASP (USB Attached SCSI Protocol) is an advanced protocol that reduces CPU utilization during data transfers compared to standard USB 3.0 Bulk-Only Transport. When used with compatible storage devices, UASP can deliver faster file operations and improved system responsiveness by enabling more efficient command queuing and parallel data transfers.
When should I use the SATA power connector on this adapter?
The optional SATA power connector should be used when connecting bus-powered devices that require more current than the PCIe slot can provide. This includes external hard drives, multiple connected devices, or peripherals that draw significant power. The SATA connector provides up to 900mA per USB port, ensuring stable operation and preventing voltage drop issues.
Can I use this adapter with USB 2.0 and USB 1.1 devices?
Yes, the PEXUSB3S24 adapter maintains full backward compatibility with USB 2.0 and USB 1.0/1.1 devices. When connecting older USB devices, they will operate at their native speeds while benefiting from the adapter's power delivery capabilities. This ensures you can continue using existing peripherals while adding support for newer USB 3.0 devices.
What installation components are included with the adapter?
The package includes the 2-port PCI Express USB 3.0 card adapter, one low-profile/half-height installation bracket for small form factor cases, one driver CD with installation software for supported operating systems, and a comprehensive instruction manual with setup guidance and troubleshooting information.
What environmental certifications does this product have?
This adapter card is TAA compliant and environmentally friendly with EU RoHS certification. It complies with Restriction of Hazardous Substances (RoHS) 2, Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and Waste Electrical and Electronic Equipment Directive (WEEE) requirements. The product is manufactured in Taiwan and backed by a 2-year limited warranty.
| Qty | Price | Available |
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