The Belkin Thunderbolt Express Dock enables Macbook and Ultrabook users to instantly access multiple desktop peripherals with one cable. The dock allows users to simultaneously connect to multiple USB devices, watch movies in Full HD 1080p, transfer volumes of data in seconds, and view online content at gigabit Ethernet speeds. The dock provides an easy transition from a desktop workstation to unrestricted mobile productivity. Quickly connects into a desktop workstation and instantly accesses multiple devices with a single cable Adds reliable, gigabit Ethernet connectivity to your laptop. Includes three USB 3.0 ports, one Firewire 800 port, one HDMI port, one 3.5mm Audio port, one gigabit Ethernet port and two Thunderbolt ports (one upstream and one downstream) for daisy-chaining to another Thunderbolt compatible device. Utilizes Thunderbolt Technology for data transfer rates of up to 10Gbps bi-directionally