HUMMINBIRD Dual Helix Starter Kit, HWFG, MI Dual Helix Starter Kit, HWFG, MI, MFG# 700063-1, for networking two Ethernet-equipped HELIX models on an fiberglass boat. Includes in-hull CHIRP transducer, 20' Ethernet cable, 2 Ethernet adapters, Side/Down Imaging splitter, and MEGA adapter cable.