Its output channels carry high-accuracy current feedback, giving a real-time per-channel current-consumption readout back to the network rather than just a simple on/off state -- useful for spotting a failing pump or a slowly-degrading connection before it becomes a full circuit fault. The onboard WiFi option allows wireless configuration and monitoring of the module (and, depending on system setup, the wider EmpirBus network) without a hardwired connection to a laptop or display, while the CAN and serial ports give it the same third-party-integration flexibility as the MCU's own expansion ports. It connects into the vessel's NMEA network with a galvanically-isolated interface that draws no power from the NMEA bus itself. Sold as the bare gateway module for a marine systems integrator building out or expanding a vessel's EmpirBus digital switching installation, not a stand-alone consumer accessory.