Function and compatibility This M125P connector is engineered for NMEA 2000 backbone networks, enabling seamless integration of multiple marine electronics such as GPS, depth sounders, and navigation displays on boats and yachts. Waterproof and durable construction IP67 rated waterproof design with a threaded locking mechanism provides reliable performance in harsh marine environments. Brass contacts and a robust plastic housing resist saltwater exposure for long term durability. Flexible configuration options and size Available in 1 male to 3/4/5/6/7 female configurations, with lengths from 83 mm to 159 mm to fit a variety of vessel layouts and equipment setups. Technical specifications Features 12 mm threading with a 5pin connection, rated for 4 A current and 60 V working voltage, ensuring stable data transmission between marine instruments and navigation systems. Materials and performance Brass contacts paired with a sturdy plastic housing deliver reliable connectivity and durability in saltwater environments. Use scenarios 1) boat installation: Connect GPS, depth sounder, and navigation displays to a single NMEA 2000 backbone using appropriate male/female configuration to match the vessel layout. 2) Boat retrofit: Upgrade aging connectors on a sail or motor yacht to maintain IP67 protection while expanding networked instruments and displays. 3) Space constrained installations: Choose from different lengths (83 mm to 159 mm) to route connections through bulkheads or confined compartments without compromising performance. Summary of benefits Provides reliable NMEA 2000 connectivity with strong water resistance, adaptable configurations and sizes, and proven electrical performance for marine instrument networks.