I do not have the units hooked into the black box and they share information. My fishing partner and I move his to mine and mine to his. The units are only connected by the yellow wire and his unit got all of my way points and mine received all of his. I now have way points on lakes I have never fished and he is the same.

They are connected through Ethernet, either directly or through one of the modules such as StructureScan or 3D module.

So if I understand your response correctly. If I hook two units into a SS3d box both units will share information
without having a Ethernet cable running between the two units.
If that is correct i can solve a lack of Ethernet ports on my 7� units


I have a 9� at the back which has two Ethernet ports. One will be taken up by connecting to the box.
The other port will run to one of the 7� up front which has only one port.
I want to run two 7s up front but not enough ports unless I use an Ethernet cable from the box to it.
If that will work I�m good to go.

Thanks