MKD-86-BM Professional Industrial Plastic Keyboard with trackball

Number of keys 86 Material ABS Plastic Key travel 1.5mm Key lifespan >5 million Power Supply 5v DC /-5% Current <30mA Interface PS2 or USB EMC Standard EN 55032:2015 , EN 55035:2017 Temperature Range Operating: -10°C to 50°C, Storage: -20°C to 60°C Compatibility All Windows, Linux, Mac Warranty 1 year Certification CE/FCC/ RoHS Dimensions 300.0 x 135.5 x 13.0mm ( L * W * H ) Weight 1.0kg