StarTech.com 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - PCI Express x1 - Plug-in Card - 4 USB Port(s) - 4 USB 3.0 Port(s) - PC PEXUSB3S4V StarTech

Electronics, Computer & Photo includes the latest versions of many of your favorite smart equipment. The StarTech.com 4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power - PCI Express x1 - Plug-in Card - 4 USB Port(s) - 4 USB 3.0 Port(s) - PC offers remarkably long service life, and reliability. Check out StarTech.com, widely used for professional and consumer applications. We are providing the next generation of amazing product. See what else is easy to operate: SIIG - JU-P40212-S1 - SIIG 3-port PCI Express USB Adapter - PCI Express 2.1 - Plug-in Card - 4 USB Port(s) - 1 SATA Port(s) - 4 USB 3.0 Port(s), or StarTech.com - PEXUSB3S42V - 4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power - PCI Express x4 - Plug-in Card - 4 USB Port(s) - 4 USB 3.0 Port(s) - PC, Linux, and Sonnet Technologies - USB3-2PMA-E34 - Sonnet USB 3.0 ExpressCard/34 Host Controller Card - ExpressCard/34 - External - 2 USB Port(s) - 2 USB 3.0 Port(s) - PC, Mac.

Add 4 external USB 3.0 ports to a low profile or standard computer, through PCI Express. 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.

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.

More from the Manufacturer

• Host Interface: PCI Express x1
• Package Contents:
  • PCI Express USB 3.0 Card
  • Low Profile Bracket
  • Driver CD
  • Instruction Manual
• Host Interface: PCI Express x1
• Product Type: USB Adapter
• Product Type: USB Adapter
• Manufacturer Part Number: PEXUSB3S4V
• Manufacturer Website Address: http://www.startech.com
• Packaged Quantity: 1
• Platform Supported: PC
• Limited Warranty: 2 Year
• Weight (Approximate): 1.59 oz
• Form Factor: Plug-in Card
• Form Factor: Plug-in Card
• Manufacturer: StarTech.com
• Product Name: PCI Express USB 3.0 Card
• Brand Name: StarTech.com
• Brand Name: StarTech.com
• Height: 2.7"
• Width: 3"
• Total Number of USB Ports: 4
• Environmentally Friendly: Yes
• Environmental Certification: RoHS
• Total Number of USB Ports: 4
• Number of USB 3.0 Ports: 4

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