StarTech.com 4 Port SuperSpeed USB 3.0 PCI Express Card with UASP - SATA Power - PEXUSB3S4

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Product Overview

Add 4 USB 3.0 ports to your desktop computer through a PCI Express expansion slot. The PEXUSB3S4 4-Port PCI Express SuperSpeed USB 3.0 Card (with SATA Power) adds 3 external USB 3.0 ports and an internal USB 3.0 port to any PCI Express-enabled computer system. With SuperSpeed USB 3.0, you can reach data transfer speeds up to 5 Gbps, while still being backward compatible with existing USB 2.0 devices at 480Mbps.

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 requires a compatible operating system). 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.

With a built-in SATA power connector, each USB port can provide up to 900mA of power to USB 3.0 devices (500mA for USB 2.0) by connecting to your computer power supply. 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, Server 2012 and Linux kernel 2.6.3 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.

Specifications

Manufacturer Startech.com
Mfg Part# PEXUSB3S4
SKU 223665393
UPC 065030844444
UPC 14 00065030844444
Sales Rank 44396
Features
Product Type USB Adapter / USB Adapter
Green Compliant Yes / Yes
Green Compliance Certificate/Authority RoHS / RoHS
Total Number of USB Ports 4 / 4
Height 2.8" / 2.8"
Width 3.5" / 3.5"
Brand Name StarTech.com / StarTech.com
Form Factor Plug-in Card / Plug-in Card
Manufacturer StarTech.com / StarTech.com
Product Name 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power / 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA Power
Manufacturer Part Number PEXUSB3S4 / PEXUSB3S4
Package Contents 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA PowerLow Profile / Half-height Bracket / 4 Port SuperSpeed USB 3.0 PCI Express Card with SATA PowerLow Profile / Half-height Bracket
Limited Warranty 2 Year / 2 Year
Host Interface PCI Express 2.0 / PCI Express 2.0
Thickness 870 mil / 870 mil
Weight (Approximate) 2.12 oz / 2.12 oz

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