New in box, includes wind device, mount, screws, mast cable and GND 10 cpu conversion black box nexus to nmea 2000 this is just about all you need to replace or add to your sailboat and can read into your chartplotter. (Does not require a stand alone wind instrument) Note: when you see these for $699 it's often JUST the Garmin Transducer or w/black box but then there is the cable and ends and add-ons see in pics above, this set includes those items and ONE nexus field end for the cable that is normally sold separately as well. Very sweet deal. Works with many brands not just Garmin.