The Network Expansion Port (NEP-2) enables multiple displays to exchange chart data, waypoint and route information, as well as interconnecting radar and sounder modules. Robust 100-megabit switch for high-speed data transfer. Featuring five Ethernet ports, the NEP-2 is compatible with NSS, NSE and NSO. Compatible with all Lowrance HDS models, plus 2007 and later LCX, LMS, X and GlobalMap Lowrance models with yellow 5-pin ethernet connector. Transmits sonar graphing display/control on compatible Navico chartplotters when networked with sonar-equipped Lowrance units. Rugged and fully waterproof to IPX7. Connectivity for up to four compatible head units per expansion module. Links with other Expansion Port modules for added/future expansion.