This new dual-technology smart card is the perfect solution for environments where multiple legacy and/or proprietary reader technologies are in place and the migration to newer technology is desired. This versatile smart card is interoperable with both Public Key Signo reader series and all iCLASS SE and iCLASS legacy readers with Keyscan Elite Key. This helps facilitate the migration to more modern and secure access control environments by offering a convenient method to bridge the Elite Key and Public Key technologies and replace readers gradually as time and budget allow.