Key Switch more than 5 million actuation Mouse Type Force sensing resistor Interface PS2/USB Power Supply 5.0VDC /-5% Dimension 75.6 x 32.6 x 3.1 mm Life Span 3 to 5 years (under normal working environment) Temperature Range Operate -20°C to 55°C, Storage: -30°C to 60°C Operation system Windows, Linux, Mac Certification CE/FCC/ RoHS
