Incredibly small but fully capable. The Manhattan Hi-Speed USB 2.0 Micro Hub features an ultra-thin design that easily adds four Hi-Speed USB 2.0 ports to desktop and notebook computers, expanding connectivity for keyboards, mice, Web cameras and other peripherals. Its high-speed ports are USB 1.1 compatible to support older devices and provide data transfer speeds up to 480 Mbps for external storage, printing, and other activities. An included AC adapter supports high-power devices. Easy to Add Connectivity. A durable aluminum case, compact size and bus with optional AC power make it easily transportable to add USB connectivity almost anywhere. Installation is simple with plug-and-play and hot-swappable capabilities and a Mini-B to type-A USB cable that quickly connects the Manhattan Hi-Speed USB 2.0 Micro Hub to any USB port.