The NAV3i Platform Power Box supplies the electrical components with power (e.g. Stryker Nav3 Graphite Camera, SPC-3 Computer, IO-Tablet (touch screen) and the monitor).
Stryker Instruments Div. of Stryker
The Stryker NAV3i Platform Power Boxes produced between December 9, 2013 and March 7, 2014 may have been assembled without electrical insulation of the soldering joints