Slim multimedia Standard keyboard Mechanical Function: Switch travel: 2.4+ / -0.2mm Keystroke life: 10million times Key switch elasticity: 50+ / -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 -50 humidity: None Condensation under 20% ~ 90% humidity Specification: Product dimension: L460mm* W198mm* H19mm Key layout: 104/ 105/ 106 keys are available , 10hotkeys Product net weight: 590± 20g Products Compatibility: Support Windows 98 / 2000/ ME/ NT/ XP/ VISTA system Support all languages versions, compatible IBM PC/ PS2/ AT/ USB/ U+ P Packing: Color box size: 475* 215* 35mm Carton size: L485mm* W320mm* H385mm Packing method: Color box, 20PCS/ CTN. Two layers