4 Port PCI Express PCIe SuperSpeed USB 3.0
Controller Card Adapter with UASP - SATA Power
Product ID: PEXUSB3S4V
The PEXUSB3S4V PCI Express USB 3.0 Card (with SATA Power) adds 4 external USB 3.0 ports to any PCI
Express-enabled computer system with support for data rates up to 5 Gbps, while remaining backward
compatible with USB 2.0 / 1.x devices.
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.
The card uses a "stacked" port layout that places the ports one on top of the other, enabling all four USB
3.0 ports to be external facing, while still allowing the card to fit into a small form factor/low profile
computer system using the included low profile bracket.
www.startech.com
1 800 265 1844
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.
www.startech.com
1 800 265 1844
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