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. SuperSpeed USB 3.0 provides up to 5 Gbps of data bandwidth, while remaining backward compatible with existing USB 2.0 devices at 480Mbps. Using a "stacked" port layout that places the ports one on top of the other, more ports are able to fit into a smaller space. This 4-port PCIe USB 3.0 adapter enables 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. 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. The PEXUSB3S4V USB 3.0 PCIe card is backed by a StarTech.com 2-year warranty and free lifetime technical support. The StarTech.com Advantage USB 3.0 PCI-E card has 4 external USB 3.0 ports using a space-saving stacked layout Dual profile (full-height and half-height) design fits into full or low profile/small form factor (SFF) systems Uses a SATA power connector for compatibility with newer systems that have limited or no LP4 power supply connections, to ensure maximum power for USB devices

feature:

Main 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

Marketing Information

The PEXUSB3S4V PCI Express USB 3.2 Gen 1 Card (with SATA Power) adds 4 external USB 3.2 Gen 1 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 3.2 Gen 1 controller performs up to 70% faster than conventional USB 3.2 Gen 1 when paired with a (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 3.2 Gen 1 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.
UASP is supported in Windows 8 and Server 2012. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 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 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.

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