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.
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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.
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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
• Expand a system's USB capabilities with four additional external USB
ports, for connecting additional external hard drives, CD/DVD drives,
MP3 players, printers, scanners, webcams, game controllers, digital
cameras, etc.
Features
• 4 external USB 3.0 ports in a stacked layout
• UASP support for more efficient data transfer
• Fully compliant with USB 3.0 revision 1.0 specifications and Intel
xHCI rev0.95 specifications
• 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
• 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 NEC uPD720201
Interface USB 3.0
Port Style Integrated on Card
Ports 4
Performance Type and Rate USB 3.0 - 5 Gbit/s
UASP Support Yes
Connector(s) Connector Type(s) 1 - PCI Express x1 Male
External Ports 4 - USB Type-A (9 pin) USB 3.0 Female
Internal Ports 1 - SATA Power (15 pin) Plug
Software OS Compatibility Windows® XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
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 2.7 in [68 mm]
Product Length 3 in [75 mm]
Product Weight 1.6 oz [45 g]
Product Width 0.7 in [19 mm]
Packaging
Information
Package Quantity 1
Shipping (Package) Weight 0.2 lb [0.1 kg]
What's in the Box Included in Package 1 - PCI Express USB 3.0 Card
1 - Low Profile Bracket
1 - Driver CD
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1 - Instruction Manual
Product appearance and specifications are subject to change without notice.
www.startech.com
1 800 265 1844
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