This keyboard features ErgoMotion, a motion system that studies your typing frequency (via an internal motor) and subtly changes your hand and wrist position while you work. This helps to combat fatigue, as well as repetitive stress injuries. The position changes are made possible by this keyboard's two-half design. Since the Engage is USB powered, all you have to do is plug-and-play, without additional wires or connections needed. This keyboard is made for PC, and is compatible with Windows XP, Windows Vista and Windows 7. The Smartfish Engage ergonomic keyboard comes in a black color.