Smart Card Connectors The C&K Switches Smart Card Connectors are available in a variety of specifications. - CCM01 connectors with fixed contacts were developed for applications where a landing contact mechanism is not required, but performance and reliability are still key considerations. -CCM02 connectors with landing contacts were developed for high reader usage (500,000 card insertion cycles) and give a higher performance in a compact, affordable package. - CCM03 connectors were developed to interface with SIM/SAM cards as defined by GSM11-11 and ENV1375-1 and are available with hinged or fixed covers.