I removed the following from my Defever 49, that was not connected to any devices when I purchased 3 years ago. -Robertson Stowe Dataline DATABOX (12V) Serial 51976923/50. No other model identifiers. On the front, are printed above ports for Power, Speed, Wind, Dataline, R.Nav, Compass and Depth. The plugs for each of the ports are included. Free to a good home; if you cover shipping. Weighs ~2 lbs and would ship from zip 27614. No idea of age. It appears to be in good shape.