The SuperSpeed USB 3.0 Bay Hub+Host Kit from SIIG is a complete USB 3.0 hub & USB 3.0 host adapter designed to add USB 3.0 connectivity to your desktop computer. It comes with a SuperSpeed USB 3.0 4-Port Bay Hub to provide four hassle-free front-accessible USB 3.0 ports for convenient device connections, and a dual profile USB 3.0 2-Port PCIe i/e host adapter with two USB 3.0 ports (one internal and one external) to ensure high performance transmissions. This USB 3.0 Bay Hub+Host Kit delivers ultra-fast USB 3.0 data transfer rates of up to 5Gb/s (10 times faster than USB 2.0), offers full backward compatibility with USB 2.0 and USB 1.1 devices, and supports simultaneous operation of multiple USB 3.0, USB 2.0 and USB 1.1 devices. It also allows you to hot-swap USB devices (connect and disconnect) without first turning your system off. It works seamlessly with a variety of high-bandwidth SuperSpeed USB 3.0 devices, such as external hard disks, high resolution webcams, camcorders, video surveillance cameras, digital video cameras, multi-channel audio, and more. The SuperSpeed USB 3.0 Bay Hub+Host Kit is the ultimate upgrade kit to add the latest USB 3.0 technology to your desktop system.