1Extensive Usage: For Nmea 2000 certified, for Lowrance Networks, for Simrad Networks, for B G Networks, for Navico Networks, for Garmin Networks. 2Function: You can cut off the original end connector, run the cable and then install for Nmea 2000 field installable connector to make running for Nmea 2000 cables more easier in hard to access areas. 3Applicable Position: The connector is designed to used at the mast foot to achieve easy connection or disconnection of the mast cables for mast mounted Nmea 2000 sensors to the backbone. 4Durable Construction: For N2K field installable connector is constructed from Abs plastic and metal with excellent oil resistant, highly durable in use. 5Excellent Performance: Marine field installable connector is engineered with 5 pin, IP67 waterproof for durability and reliability, stable performance and high efficiency.