50.0mm (2.0’') vandal proof IP65 static mechanical trackball module, black harden resin ball with 400DPI resolutions, designed to meet MIL-STD-461G and MIL-STD-810F standard, military level, with strong anti-interference ability, and low radiation etc., USB 2.0 interface, with rear panel mounted solution.
DIMENSIONS: 72.6mm x 72.6mm x 34.5mm