Brand new 6m cable - intended to use but bought and entire system that already included the cable. I was going to use between a p Gps antennae and try boats nmea backbone.

Here is what the website where I purchased it from said:

The Fusion NMEA 2000 Backbone Extension Cable is required when extending the length of your NMEA 2000 or FUSION network to accommodate additional wired remote controls or FUSION marine stereo systems.

Fusion NMEA 2000 Backbone Extension Cable Features: Quality construction High abrasion resistance Reliable connections