Transducer Extension Cable, 30 ft. Used with 300TX, 400TX, TOUR SERIES, WIDE EYE, WIDE VIEW, WIDE VISION, WIDE 3D VIEW, WIDE 3D VISION, WIDE 3D VISTA, WIDE OPTIC, WIDE PORTRAIT, WIDE PANORAMA, WIDE PARAMOUNT, WIDE 3D PARAMOUNT, ALL MATRIX, ALL PIRANHA PRODUCTS, ALL 500 SERIES FISHFINDER.(hmmecw30 720003-2)