3561B, New I O Bus Expander Aircraft Avionics Circuit Board
Click Image for Gallery
New, nos, I/O Bus Expander Aircraft Avionics Circuit Board. Manufactured by Rolm Corp Mil - Spec Computers. P/N 3561B. Alternate P/N 7804-5068-1. NSN: 5998-01-101-3016. List price $2746.94!!