MKA-6FN Professional Industrial Function Keypad with 6 Keys

Key Switch more than 5 million actuation Interface PS2/USB/RS232/dot matrix Power Supply 5.0VDC /-5% Dimension 150.0 x 26.0mm 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