The ethernet cable coming from the head is a standard 10' cable. Taking the cover off the head will verify that. There is also a PDF on HB's website showing how to install the I-pilot link. The open end is the standard HB ethernet connection that will screw into the display or plug in using the adapter. The adapter that plugs into the ethernet port on 800, 900, and 1100 models is about 12" long and is easily replaceable.
2015 Seaark 1872 MV CC Etec-90
Helix 12 CHIRP SI, HB 1199, MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner