StarTech.com PEXUSB314A2V2 4-Port USB 3.2 Gen 2 PCIe Card - 10Gbps Type-A with SATA Power & UASP Support
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This PCIe card installs in a standard profile PCI Express 2.0 x4 slot and supports the USB Attached SCSI Protocol (UASP) for enhanced storage device performance. UASP reduces CPU utilization and latency while improving data transfer speeds for compatible storage devices including SSDs, HDDs, NVMe drives, and high-performance thumb drives.
The card's multiple INs architecture maximizes bandwidth allocation when using mixed-speed devices, ensuring optimal performance across all connected peripherals. With automatic driver installation on Windows 8 and newer systems, setup is streamlined for most deployment scenarios.
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 expansion card delivers professional-grade USB connectivity with features designed for demanding IT environments. The dual-controller architecture ensures reliable performance under heavy loads, while the supplemental power option addresses common power delivery limitations in desktop systems.
Enhanced Storage Performance
UASP support accelerates data transfers for storage devices by reducing protocol overhead and CPU utilization, making it ideal for external SSDs and high-capacity drives.
- Faster file transfers
- Reduced system load
- Optimized for modern storage
Power Delivery Flexibility
The integrated SATA power header provides additional power when needed, ensuring stable operation with power-hungry USB devices that exceed standard motherboard USB power limits.
- Up to 4.5W per port
- Prevents power-related issues
- Supports demanding peripherals
Deployment / Use Cases
This USB PCIe card is designed for desktop computers requiring additional high-speed USB connectivity. It's particularly valuable in workstations, content creation systems, and data transfer stations where multiple fast storage devices need to operate simultaneously without performance degradation.
Common deployment scenarios include video editing workstations connecting multiple external SSDs for media storage, data backup systems requiring fast transfer speeds to external drives, and development environments with numerous USB peripherals. The card also serves well in legacy system upgrades where modern USB 3.2 Gen 2 connectivity is needed but not available on the motherboard.
Physical Profile
The black plug-in card measures 4.70" (119.38 mm) in length, 5.90" (149.86 mm) in width, and 0.70" (17.78 mm) in height, with an approximate weight of 4.40 oz (124.74 g). Its standard profile design ensures compatibility with most desktop computer cases, and the included full-profile bracket is pre-installed for immediate use.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 0.70" (17.78 mm), 5.90" (149.86 mm), 4.40 oz (124.74 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 5.90" (149.86 mm)
- Height
- 0.70" (17.78 mm)
- Weight
- 4.40 oz (124.74 g)
- Length
- 4.70" (119.38 mm)
What's in the Box
The package includes everything needed for installation and operation.
Package contents include USB Adapter, 1x Quick-Start Guide, 1x Full Profile Bracket (Installed). These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- Four USB 3.2 Gen 2 Type-A ports with 10Gbps SuperSpeed connectivity
- Dual ASM3142 controllers provide up to 20Gbps total bandwidth
- USB Attached SCSI Protocol (UASP) support for enhanced storage performance
- SATA power header for supplemental power delivery up to 4.5W per port
- PCI Express x4 interface compatible with PCIe 2.0 slots
- Broad operating system support including Windows, macOS, and Linux
- Automatic driver installation on Windows 8 and newer systems
- Backward compatible with USB 3.0 and USB 2.0 devices
- Lifetime warranty with StarTech.com technical support
- RoHS, REACH, and WEEE environmental compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | PEXUSB314A2V2 |
| Brand Name | StarTech.com |
| Product Name | USB Adapter |
| Packaged Quantity | 1 |
| Product Type | USB Adapter |
| Technical Information | |
| Host Interface | PCI Express x4 |
| Media & Performance | |
| UASP Support | Yes |
| Interfaces/Ports | |
| Total Number of USB Ports | 4 |
| Number of USB 3.2 Ports | 4 |
| Number of SATA Ports | 1 |
| Software | |
| Operating System Supported | Windows 7,Windows 8,Windows 8.1,Windows 10,Windows 11,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019,Windows Server 2022,Mac OS X 10.13 High Sierra,Mac OS X 10.14 Mojave,Mac OS X 10.15 Catalina,Mac OS X 11.0 Big Sur,Mac OS X 12.0 Monterey,Mac OS X 13.0 Ventura,Linux 3.5 |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Form Factor | Plug-in Card |
| Height | 0.70" (17.78 mm) |
| Width | 5.90" (149.86 mm) |
| Length | 4.70" (119.38 mm) |
| Weight (Approximate) | 4.40 oz (124.74 g) |
| Miscellaneous | |
| Package Contents | USB Adapter 1x Quick-Start Guide 1x Full Profile Bracket (Installed) |
| Platform Supported | PC,Linux,Mac |
| Country of Origin | China |
| 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 | Lifetime |
User Manual
FAQ
What types of devices benefit most from this USB PCIe card?
This card delivers maximum benefit for high-speed storage devices including external SSDs, NVMe drives, and high-performance thumb drives that can utilize the 10Gbps bandwidth. Video editors, photographers, and data professionals will notice significant performance improvements when transferring large files. The UASP support specifically optimizes storage device performance by reducing protocol overhead and CPU utilization.
How does the dual-controller design improve performance?
The dual ASM3142 controllers distribute bandwidth management across two independent processors, preventing bottlenecks when multiple devices operate simultaneously. This architecture provides up to 20Gbps total bandwidth across all four ports and ensures consistent performance even with mixed-speed devices. Multiple INs support further optimizes bandwidth allocation for connected peripherals.
When would I need to use the SATA power header?
The SATA power header provides supplemental power when connected USB devices require more power than the motherboard's USB ports can deliver. This is particularly useful for bus-powered external hard drives, multi-bay enclosures, or devices with high power demands. The header enables up to 4.5W ([email protected]) per USB-A port, ensuring stable operation with power-intensive peripherals.
What operating systems are supported by this expansion card?
The card supports Windows 7 through Windows 11, Windows Server 2012 R2 through 2022, macOS High Sierra through Ventura, and Linux kernel 3.5 and newer. Windows 8 and newer systems feature automatic driver installation, while other operating systems may require manual driver configuration. This broad compatibility makes the card suitable for diverse IT environments.
Can this card be installed in any desktop computer?
The card requires an available PCI Express x4 slot (compatible with PCIe 2.0 and newer) in a standard profile desktop computer. It measures 4.70" x 5.90" x 0.70" and includes a full-profile bracket for standard ATX cases. Before installation, verify available slot space and ensure your power supply has an available SATA power connector if supplemental power will be utilized.
What warranty and support does StarTech.com provide for this product?
StarTech.com backs this USB PCIe card with a lifetime warranty, covering defects in materials and workmanship for the product's usable life. The warranty includes access to free 24/5 technical support from North America-based multilingual technicians. This professional-grade support structure ensures reliable long-term deployment in business and IT environments.
| Qty | Price | Available |
|---|
