MKR-US2-8 Humminbird 7 pin Adapter Cable Model:#1852068 Universal Sonar 2 delivers advanced water temperature sensing and DualBeam PLUS technology for the best view of the waters below. These adapters connect your trolling motor to your favorite brand of sonar or fishfinder (200 kHz and 200/83 kHz DualBeam PLUS™ compatible). Shielded, IP68-rated waterproof connectors are metal tipped to prevent sonar interference. Compatible Models Piranha 4, Piranha 5, PiranhaMAX 10, PiranhaMAX 15, PiranhaMAX 20, PiranhaMAX 30PT,PiranhaMAX 150, PiranhaMAX 150PT PiranhaMAX 160, PiranhaMAX 160PT, PiranhaMAX 170,PiranhaMAX 180, PiranhaMAX 190c, PiranhaMAX 210, PiranhaMAX 215, PiranhaMAX 220,PiranhaMAX 230PT, PiranhaMAX 240, Matrix 10, Matrix 12, Matrix 15, Matrix 20, Matrix 25,Matrix 27, Matrix 35, Matrix 37, Matrix 55, Matrix 65, Matrix 67 Combo, Matrix 77c,Matrix 87c Combo, Matrix 97 Combo, Fishfinder 515, Fishfinder 525, Fishfinder 535, Fishfinder 565,Fishfinder 575, Fishfinder 580 Combo, Fishfinder 585c, Fishfinder 595c, 141c, 161, 323, 325, 343c,345c, 363 Combo, 365i Combo, 383c Combo, 385ci Combo, 550, 560, 570, 570 PT, 586c,587c Combo, 587ci Combo, 588i Combo, 596c, 597c Combo, 597ci Combo, 717, 718, 727, 728, 737,747, 757c Combo, 767 Combo, 768 Combo, 777c2, 778c, 787c2 Combo, 787c2i Combo, 788c Combo,858c Combo, 917c Combo, 931c, 937c Combo, 957c Combo, 958c Combo, 1157 Combo, 1157c Combo