Add seven USB 3.0 ports to your desktop computer through a PCI Express expansion slot - Handle your workload more efficiently. This USB 3.0 card expands your computer's capabilities by giving you seven extra USB 3.0 ports. It's engineered with an innovative stacked port layout to fit easily into both low-profile and standard desktop computers. Greater port count. Greater scalability. More ports means you can add USB devices as you need them.  This robust USB 3.0 card gives you seven USB 3.0 ports - six external and one internal - so you can plug in your tablets, smartphones, external hard drives, CD/DVD drives, printer and other devices at the same time. With so many extra ports, you can leave your devices plugged in, so they're ready to use when you need them. It's also economical - by being able to connect so many devices, you save the cost of extra hubs or cards. The internal USB 3.0 port lets you connect a USB device inside your computer for added convenience and security. Unique dual-profile design This versatile USB 3.0 card features a dual-profile design with a stacked port layout. The innovative port configuration allows a high number of external ports in a compact design, allowing it to fit both low-profile and full desktop computer systems. A bracket is included for installation into low-profile computers. Easy driver installation You'll be up and running in no time. The card automatically installs in Windows 8, and 8.1, with native operating system support. It's also backward compatible with USB 2.0 and 1.x devices to help you get the most out of your existing peripherals. Effective USB 3.0 performance enhanced by UASP This high-performance SuperSpeed USB 3.0 card supports data transfer rates up to 5 Gbps and is enhanced with UASP support, which can perform ~70% faster read speed and 40% faster write speed over traditional USB 3.0, when paired with a UASP-enabled enclosure.