ILink will come with a 20ft Ethernet cable ...and can connect direct to the AS ETH 5XPG ...

360 will come with a 20ft Ethernet cable ...and can connect direct to the AS ETH 5XPG ...

You will need the AS EC QDE adapter cable for the 999 unit ...
https://www.humminbird.com/productDe...eid=728&id=868

You will need an Ethernet cable long enough to reach from the 999 to the AS ETH 5XPG ...
https://www.humminbird.com/productCa...74&facets=7319,

The AS ETH 5XPG requires 12v power so plan it's installation and power the AS ETH 5XPG thru a switch so that it doesn't draw power when not in use ...

Rickie