Cherry G84-4420LUBEU-0 UltraSlim Compact Keyboard with USB Interface and Optical Trackball, 15" Width, Light Gray Size-reduced  QWERTY Key Layout in Ultraslim 15 Form Factor Combines Maximal Space  Efficiency with Comfortable Alphanumeric Data Entry FN-Key for Easy Access of Integrated Numeric Area Ensures Complete Function Support as with Full Size Keyboards Available with PS/2 and USB interface Ultraflat optical for Easy Cursor Navigation at Minimized Space