StarTech 4 Port PCI Express SuperSpeed USB 3.0 Controller Card Adapter with UASP
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. 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 2-year warranty and free lifetime technical support.• 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 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 add-on USB 3.0 cards, a UASPenabled StarTech enclosure and a SATA III solid state drive. Advantage • USB 3.0 PCI-E card has 4 external USB 3.0 ports using a space-saving stacked layout • Time-saving file transfers, up to 70% faster than traditional USB 3.0 when used with a UASP-supported enclosure • Power high-powered USB devices as necessary, with the optional SATA power connector 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.
