This eBay listing is for ONE Garmin Shadow Drive GHP for the GHP 10, 12 and 40 / Reactor Autopilot Controllers, Garmin P/N 010-11054-00. Brand new in and unused, I just opened the package for the pictures. Comes as shown and described. I will give it my own 90 day no DOA Warranty! Buyer pays $7 S/H via USPS Priority mail. Buy with confidence from Taylor Marine Electronics / Esoteric Specialties!