Normal Keys: 83 Features: Mechanical Keyswitches are Rated at 50 Million Actuations to Withstand Harsh Environments and Ensure Long Product Lifetime Size-reduced QWERTY Key Layout in Ultraslim 11" 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 Optional "Non-Windows" Key Layout Dual PS2/USB Interface Allows for Easy Field Upgade Package Contents: Slim Line Compact G84-4100 Keyboard Manual Adapte Parts: 1 year limited Labor: 1 year limited