Connect or power your fishfinders and sounders with this power/data cable.
Compatible model:
Fishfinder 300c, 400c, GPSMAP 402/420s, 421s, 430/430s, 431s, 440/440s, 441s, 520/520s, 521s, 525/525s, 530/530s, 531s, 535/535s, 536s, 540/540s, 541s, 545/545s, 546s, 580/585