The ethernet Cable is a 30&'; cable that allows the connection of two Ethernet capable units to be connected, or connection of a Humminbird control head to an accessory 5 Port Ethernet Switch ( AS ETH 5PXG) As part of a multi unit Ethernet network. Current Models, HELIX 8, 9,10,12,15. Solix 10,12,15 & discountinued Series 700,800,900,1100. Plus ION,ONIX 30 foot length One year Manufacturer warranty .