Multiplexers

Connect, convert, and clean up your boat’s data network.

NMEA multiplexers bring order to busy instrument networks by combining multiple data streams and delivering them exactly where you need them. Whether you’re merging AIS, GPS, depth, and heading data, feeding multiple displays, or bridging legacy and modern systems, a quality multiplexer improves reliability and reduces wiring headaches.

Our selection covers essential use cases—from simple NMEA 0183 multiplexing to advanced NMEA 2000 gateways with USB, Ethernet, and Wi-Fi. Many models add smart features like data filtering and routing, talker/listener prioritization, sentence de-duplication, galvanic isolation, and configurable baud rates for clean, stable data across your network.

Every unit we carry is proven on the water and designed to integrate cleanly with chartplotters, PCs, tablets, and marine apps. Use a multiplexer to streamline installs, expand capability, and unlock dependable data sharing between new and existing electronics.

Use our filters to explore by interface (0183/2000), connection type (USB/Ethernet/Wi-Fi), and features (filtering, isolation, conversion) to find the best fit for your vessel.