The Maltron Dual Hand 2D Keyboard is a modified ergonomic keyboard designed for use by individuals at risk for repetitive motion injury of the upper extremity. This plug-and-play keyboard has two key groups for letters with a central number group that suits both left and right handers. The letter keys are angled to match natural finger movements and the keys for the longer fingers are further away to reduce finger motion and provide small therapeutic actions. This keyboard has all the functions of a standard keyboard and is available in the following languages: British English, American English, Spanish, and most European languages. It has a key repeating feature that can be turned on and off, the key repeat rate has three speeds - slow, medium or fast. Dually engraved keys show QWERTY layout in upper case and Maltron layout in lower case letters. Other letter layouts are available. COMPATIBILITY: For use on IBM and compatible computers or Apple Macintosh computers with a USB port. DIMENSIONS (LxWxH): 17 x 8.5 x 2 inches. WEIGHT: 2 pounds. COLOR: Grey or black. WARRANTY: 1-year warranty.