HDE 2 Port USB 3.0 54mm Express Card Suitable for notebook computers (or computers containing ExpressCard Slots) 2 USB 3.0 ports w/ compatible specifications; Transfer rate 5Gbps Support USB series specifications (Compatible USB 1.1 Full-Speed / 2.0 High-Speed) Support Super-Speed 5Gbps, High-Speed 480Mbps, Full-Speed 12Mbps and Low-Speed 1.5Mbps Data Transfer Rate.&lt;/ Package Contents Include: 1x USB 3.0 ExpressCard/54mm, 1x Driver CD, 1x USB cable