The Macally XKEYHUB is a full size USB keyboard with two USB ports, specially designed for Mac. Plug and play, this keyboard doesnt require any installation software and is very easy to use! The keyboard has a standard layout with full size keys for a comfortable and efficient typing experience. It also has 16 convenient shortcut keys and a 17-key numeric keypad to increase efficiency and productivity. The two USB 2.0 ports on the back of the keyboard allow you to use it as a hub and connect other USB devices, such as your mouse or a Flash Drive. Plug and Play, full size and functional, the Macally XKEYHUB is ideal for office, school and home use.