MyBoard-UC is a large key, large print keyboard designed for use by children with motor skill, vision, or cognitive disabilities. This keyboard has oversized keys color-coded by character set. Keytop labels have uppercase letters. There are no function keys. COMPATIBILITY: For use on IBM and compatible personal computers or Macintosh computers. SYSTEM REQUIREMENTS: Windows 98SE, 2000, ME, XP, or Vista, 7 or MAC OS 10.1.5 or higher and a USB port (a PS/2 adapter is included). DIMENSIONS: 19 x 1.5 x 7 inches. Keys are 1-inch square. COLOR: Black case with red, yellow, blue, and green keys. The keytop labels are white. WARRANTY: Six-year warranty for in-home use.