StarTech.com 2 Port PCIe USB3 Card Adapter UASP LP4
Product Code: 8STPEXUSB3S25
Pack Of 1
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Description

General
The PEXUSB3S25 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 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 3.0 bus-powered devices (500mA for USB 2.0).
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (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 3.0 adapter is compliant with USB 3.0 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.
Improved Performance with UASP
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 3.0 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 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.
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Specification

BrandStarTech.com
Dimensions120x82x18mm
ManufacturerStarTech.com
TypePCI Cards
Warranty2 Year Warranty
FormUSB 3.0 Cards
Capacity2 Ports
Weight50g

Features

Backward compatible with USB 2.0 and USB 1.0/1.1 devices
Compliant with PCI Express 2.0 specifications
Fully compliant with USB 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications
Includes a Low-Profile/half-height installation bracket
Optional LP4 power connector provides up to 900mA per USB port
Provides two external USB 3.0 ports with UASP support
Supports data rates up to 5 Gbps
Supports USB Battery Charging Specification 1.2

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