Box has a lot of wear, but this module has never been installed. Biosense Webster Carto 3 System Carto 3 Confidense Module Mapping module Upgrade Kit. KT-5400-136 KT5400136 Please ensure this module kit works with your system. I'm sorry, but we are not offering any returns. From the manufacturer........ The CONFIDENSE Module offers CARTO3 System users a complete and streamlined high-density mapping solution. The CONFIDENSE Module introduces a new degree of control over point acquisition and insight into your mapping procedures. This high-performance mapping module is fully integrated into the CARTO3 System.