StarTech.com 4 Independent Port PCI Express SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - PEXUSB3S400

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Product Overview

Add 4 Independent SuperSpeed USB 3.0 ports to your PC through a PCI Express slot. The PEXUSB3S400 PCI Express USB 3.0 Card adds 4 independent external USB 3.0 ports to any PCI Express x4-enabled computer system, with full bandwidth support (up to 5Gbps) per port when connected to USB 3.0 devices.Unlike other USB 3.0 cards, which share the maximum bandwidth between multiple ports, the card offers maximum transfer rates to each device when multiple devices are connected.

Further 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.

This 4-port USB 3.0 card features a stacked port layout, which places the ports one on top of the other, so more ports are able to fit into a smaller space. Plus, with a built-in SATA power connector, each USB port can provide up to 900mA of power to devices that draw power from a host bus connection (500mA for USB 2.0) by connecting to your computer power supply.

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# PEXUSB3S400
SKU 246649598
UPC 065030849685
UPC 14 00065030849685
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 2.4" / 2.4"
Width 6.7" / 6.7"
Brand Name StarTech.com / StarTech.com
Form Factor Plug-in Card / Plug-in Card
Manufacturer StarTech.com / StarTech.com
Product Name PCIe USB 3.0 Card / PCIe USB 3.0 Card
Manufacturer Part Number PEXUSB3S400 / PEXUSB3S400
Package Contents PCIe USB 3.0 Card1 x Low Profile Bracket1 x Driver CD1 x Product Manual / PCIe USB 3.0 Card1 x Low Profile Bracket1 x Driver CD1 x Product Manual
Limited Warranty 2 Year / 2 Year
Host Interface PCI Express x4 / PCI Express x4
Thickness 700 mil / 700 mil
Weight (Approximate) 2.60 oz / 2.60 oz
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