-USB Num Pad 19 Key Compatibility: IBM, PC, AT, Mac,
-Button Design: 19 Bonds.
-Key Trip: 3.0+/-0.3mm
-Surcharging Height: 0.25+/-0.05mm
-Maximum Pressure: 55+/-5g
-Operating Temperature: 0-55 C
Key Life: 800 Million And Above
Dimensions: Cable Length:1.13m