StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - 5Gbps - LP4 Power
- Provides two external USB 3.2 Gen 1 ports with UASP support
- Supports data rates up to 5 Gbps
- Compliant with PCI Express 2.0 specifications
- Optional LP4 power connector provides up to 900mA per USB port
Product Description
StarTech.com 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - 5Gbps - LP4 Power - The PEXUSB3S25 2-Port PCI Express USB 3.2 Gen 1 Card lets you add two USB 3.2 Gen 1 ports to your PCI Express-enabled computer system, with an optional LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.2 Gen 1 bus-powered devices (500mA for USB 2.0).
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 when paired with a (Note: UASP is not supported by all operating systems). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details.
The PCIe USB 3.2 Gen 1 adapter is compliant with USB 3.2 Gen 1 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the controller card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
UASP is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 at peak performance.
At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources.
Test results were obtained using an Intel Ivy Bridge system, StarTech.com add-on USB 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.
More from the Manufacturer
- Provides two external USB 3.2 Gen 1 ports with UASP support
- Supports data rates up to 5 Gbps
- Compliant with PCI Express 2.0 specifications
- Optional LP4 power connector provides up to 900mA per USB port
- Supports USB Battery Charging Specification 1.2
- Fully compliant with USB 3.2 Gen 1 rev 1.0 and Intel xHCI rev 1.0 specifications
- Backward compatible with USB 2.0 and USB 1.0/1.1 devices
- Includes a Low-Profile/half-height installation bracket
- Provides two external USB 3.0 ports with UASP support
- Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications
Product Specifications
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Additional InformationOS Compatibility: Windows Vista, 7, 8, 8.1, 10 Windows Server 2008 R2, 2012, 2012 R2, 2016, 2019 Linux 2.6.31 to 4.11.x LTS versions only
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Brand NameStarTech.com
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Country of OriginChina
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Environmentally FriendlyYes
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Form FactorPlug-in Card
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Height4.7"
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Host InterfacePCI Express x1
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Length3.2"
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Limited Warranty2 Year
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Manufacturer Part NumberPEXUSB3S25
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Number of USB 3.2 Ports2
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Operating System SupportedWindows 10 Windows 11 Windows 7 Windows 8 Windows 8.1 Windows Server 2008 R2 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Vista
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Package Contents2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP 1 x Low Profile Bracket 1 x SATA to LP4 Cable 1 x Driver CD 1 x Instruction Manual
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Platform SupportedPC Linux
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Product ColorBlack
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Product Name2 Port PCI Express PCIe SuperSpeed (5Gbps) USB 3.0 Card Adapter with UASP
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Product TypeUSB Adapter
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Total Number of USB Ports2
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Width0.7"