StarTech.com 4-Port SuperSpeed USB 3.0 PCIe Card with SATA Power Connector & UASP - Manual

4 Port PCI Express PCIe SuperSpeed USB 3.0 Controller Card Adapter with UASP - SATA Power
StarTech 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.
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.