This Ethernet adapter cable will allow you to use a Humminbird Ethernet cable (sold separately) to network an ethernet-equipped Humminbird fish finder with other compatible fish finders, Ethernet accessories and Minn Kota i-Pilot Link trolling motors. This cable is approximately 12 inches long.
Compatible with: HELIX 7 G2N & G3N models, all HELIX 8, HELIX 9, HELIX 10, HELIX 12 and HELIX 15 models, 859 models, 899 models, 959 models, 999 models, 1159 models, and 1199 models.
If you are networking two fish finders from the above list together, it will require two (2) AS EC QDE cables plus one (1) Ethernet cable of the appropriate length for your boat’s needs.
If you are networking one HELIX 9 Series, HELIX 10 Series, HELIX 12 CHIRP Series,  7×8 HD Series, 8x9ci HD Series, 9x9ci HD Series, or 11x9ci HD Series product with a pre-2014 8×8, 9×8 or 11×8 Series product, you will only need one adapter plus one Ethernet cable.
Software updates on some 7×8 HD and some 8x8c, 9x8c and 11x8c Series products may also be necessary.