This is a humminbird ethernet adaptor cable with a part number of 720074-1. This cable fits the following units all HELIX 15, HELIX 12, HELIX 10, HELIX 9 and HELIX 8 models, HELIX 7 G2N, G3N, G4N models, 859 models, 899 models, 959 models, 999 models, 1159 models, and 1199 models. Please look at picture carefully what you see is what you're getting.