The CE 34's memory capacity is sufficient for a total combined storage of up to 35,000 marks/waypoints, 10,000 waypoints (each with a name containing up to 25 characters), 50,000 trackpoints, 50,000 line sections and 1,000 routes. The CE 34 communicates with other shipboard equipment via the SimNet (NMEA 2000) high-speed bus and the familiar, but slower, NMEA 0183 system. The CE 34 can accept two digital data cards. In most instances one of the cards will be a C-MAP NT chart cartridge. A Simrad DataCard installed in the second slot can be used to store all of the user data and current operating setup information.