Humminbird 408390-1 NMEA2000 Black Box with Ethernet Connection Waterproof Black Box Connects via Ethernet Connect to established NMEA 2000 Network Intuitive User Interface Features Data Boxes and Pre-Programmed Instrument Views Works with 1198c SI, 1197c SI, 998c SI, 958c, 958c DI, 898c SI, 858c, 858c DI, 798ci HD SI, 788ci HD, 788ci HD DI, 778c HD