STARTECH.COM ST ECUSB3S254F - Express Card, 2x USB a 3.0, 5000 Mbps

"Add two flush-mounted USB 3.0 ports to your ExpressCard-enabled laptop. Uniquely designed design with flush mounting Two SuperSpeed USB 3.0-compatible ports with transfer rates up to 5 Gbit/s. UASP support for more efficient data transfer Backwards compatible with USB devices Complies with USB 3.0 base specification 1.0 and xHCI specification 0.95 The flush-mounted ECUSB3S254F 2-port USB 3.0 Express Card Adapter allows you to add two USB 3.0 ports to an ExpressCard-enabled laptop. The USB 3.0 card is designed to be flush-mounted into a standard 54 mm ExpressCard slot on a laptop. This allows it to remain installed on the go without fear of damage to the card or the ExpressCard slot. With support for USB attached SCSI Protocol (UASP), this USB 3.0 controller in combination with a UASP-enabled chassis is up to 70% faster than a conventional USB 3.0 (Note: UASP requires a compatible operating system). Using a more efficient protocol than the conventional USB (Bulk-only Transport) OFFERED, UASP technology optimizes transmissions by processing multiple commands simultaneously, significantly increasing transmission speed and reducing data transfer wait times. For more information, see our UASP test results below. The SuperSpeed USB 3.0 card enables data transfer rates up to 5 Gbit/s and is backwards compatible with USB 2.0 (up to 480 Mbit/s) and USB 1.1/1.0 up to 1.5/1.2 Mbit/s - the perfect accessory for laptop users who want to connect old or new USB devices. Improved performance with UASP UASP is supported on Windows® 8, Server 2012, and Linux Kernel 2.6.3 or later. In tests, UASP showed up to 70% higher read speed and 40% higher write speed compared to a traditional USB 3.0 at peak performance. At the same peak, UASP also showed a 80% reduction in processor resource requirements in the test. Test results were obtained using an Intel® Ivy Bridge system, 3.0 USB StarTech.com mezzanine cards, UASP-enabled StarTech.com-Gehäuse, and SATA III solid state drive."