1.Interface: USB
2.Number of keyboard keys: 104
3.Keyboard keys lifetimes: 10 million keystrokes
4.Product dimension:445(L)*136(W)* 26(H)±0.5 mm
5.Product weight:385g
6.Rated voltage/current:DC5V/s100mA
7.Operating temperature range: 0°C to 40°C
8.Operating humidity range: 10%-85%.