ST-Ng (M) to DeviceNet (F) AdapterThis handy accessory will make networking Raymarine and 3rd party NMEA2000 devices much simpler. Using the adapters, you can instantly convert devices or spur cables from one connector system to the other will make networking Raymarine and 3rd party NMEA2000 devices much simpler. Using the adapters, you can instantly convert devices or spur cables from one connector system to the other.