Instantly add four USB 2.0 ports to all compatible devices. Easy setup, plug, and play, hot-swappable, hot-pluggable. Gain four, downstream ports that offer high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps). Intelligently designed to be as thin as possible, allowing you to maximize precious workspace or travel with ease. Backward compatible with 1.1 devices and hosts.