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2 Port SuperSpeed USB 3.0 PCI Express Card with
UASP - SATA Power
Product ID: PEXUSB3S22
The PEXUSB3S22 2-Port PCI Express SuperSpeed USB 3.0 Card (with SATA Power) lets you add 2 USB
3.0 ports 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.
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With a built-in SATA power connector, each USB port can deliver 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.
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Certifications, Reports
and Compatibility
Applications
• Upgrade an older PCIe-based system with USB 3.0 connectivity to
fully utilize USB 3.0 devices
• Ideal for newer computer systems with only SATA power connectors
or limited number of older LP4 power connectors
• Expand a system's USB capabilities with two additional external USB
ports
• Connect additional external hard drives, CD/DVD drives, MP3 players,
printers, scanners, webcams, game controllers, digital cameras, etc.
to a computer system
Features
• Provides two external USB 3.0 connections
• Fully compliant with USB 3.0 revision 1.0 specifications and Intel
xHCI rev0.95 specifications, with transfer rates up to 5 Gbps
• UASP support for more efficient data transfer
• Built-in optional SATA power connector for bus-powered USB devices
• Optionally provides up to 900mA per USB port
• Backward compatible with USB 2.0 and USB 1.0/1.1 devices
• Support Control/Bulk/Interrupt/Isochronous USB Transfer modes
• Compliant with PCI Express 2.0 specifications
• Includes a Low Profile/half-height installation bracket
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Warranty 2 Years
Hardware Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID Renesas / NEC - µPD720200
Interface USB 3.0
Ports 2
Performance Maximum Data Transfer Rate 5 Gbps
UASP Support Yes
Connector(s) Connector Type(s) 1 - PCI Express x1 Male
External Ports 2 - USB Type-A (9 pin) USB 3.0 Female
Internal Ports 1 - SATA Power (15 pin) Plug
Software OS Compatibility Windows® 8 / 8.1 (32/64), 7 (32/64), Vista (32/64), XP
(32/64)
Windows Server® 2012, 2008 R2, 2003
Special Notes /
Requirements
Note The maximum throughput of this card is limited by the bus
interface. If used with PCI Express Gen 1.0 enabled
computers, the max throughput is 2.5 Gbps. If used with
PCI Express Gen 2.0 enabled computers, the max
throughput is 5 Gbps.
System and Cable Requirements Available PCI Express expansion slot
Environmental Humidity 20% ~ 80% RH
Operating Temperature 5°C to 50°C (41°F to 122°F)
Storage Temperature -25°C to 70°C (-13°F to 158°F)
Physical
Characteristics
Product Height 0.6 in [15 mm]
Product Length 2.8 in [70 mm]
Product Weight 1.5 oz [43 g]
Product Width 2.4 in [60 mm]
Packaging
Information
Shipping (Package) Weight 4.6 oz [131 g]
What's in the Box Included in Package 1 - PCI Express USB 3.0 card
1 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual
Product appearance and specifications are subject to change without notice.
www.startech.com
1 800 265 1844
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