A cable used to download missions from a computer onto a spybot, and to upload mission scores and succesful missions/failed mission status. At one end it has 2 0.5 peg prongs and 1 triangular prong that plugs into the spybot. The other end has a DB9 female plug. (Most XP computers do not have this type of outlet, you can find adapters from USB 2.0 to DB9 for about $5 here