Standard Keyboard - 440x140x23mm, 10 Million Keystroke Life, 55g Key Switch Elasticity | Compatible With Windows 98/2000/me/nt/xp/vista/win 7

Mechanical Function:
Switch travel:3.0+/-0.5mm
Keystroke life: 10million times
Key switch elasticity: 55+/-7g

Power Requirement:
Working voltage: 5.0+/-0.25Vdc
Working current: Less than 30mA
Power: Less than 0.5 wt

Environment and Temperature:
Working temperature: 0-50degrees
Working humidity: None Condensation under 20% ~90% humidity

Specification:
Product dimension: L440mm*W140mm*H23mm
Key layout: 105/106/108 keys are available
Product net weight: 520g+/-20g

Products Compatibility:
Support Windows 98 /2000/ ME/ NT/ XP/VISTA/WIN 7 system
Support all languages versions, compatible IBM PC/PS2/AT/USB/U+P