Mechanical Keyboard with 104 Keys Key life: More than 50 Million Strokes Feather touch feel with power Impacts Sculpted key Carps : Results in Low Fatigue to user Highly Reliable: More than 20,000 MTBF (Mean Time Between Failures) Laser Etched Keys : Reduced Wear & Tear Widely Compatible : Win 98 / 2000 / XP / Vista ROHS Certified Ergonomic Design PS2 Connectivity       Electrical     Input Power Rating +5.0 V DC +/- 10%, 25 mA   Interface Bi-directional   Data Format Data transfer to and from the keyboard in IBM PC compatible format   Connector Type 5 Pin DIN for IBM PC - AT 6 Pin Mini DIN connector for IBM PS/2     Pin No 5 Pin Din (STD) 6 Pin Mini Din (PS/2) 1 Clock Data 2 Data Not used 3 Not Used Ground 4 Ground Power 5 Power Clock 6 ---- Not used Mechanical     Switch type Mechanical   Switch feel Click tactile   Operating force 4.0 +/- 0.0 / 0.5 mm     Operating force 60 +/- 15 CN   Dimension 490 (L) x 180 (W) x 20 (H) mm   Environmental     Operating temperature 5o C to 40o C     Storage temperature -40o C to 60o C   Relative Humidity 10 to 85%           Brochures     TVS Gold