NASA ISS Audio Subsystem Flight Hardware For Sale

NASA flight-qualified **Harris Audio Bus Coupler** now L3Harris, part number 77245300005102, serial number 00003, used in the International Space Station’s Internal Audio Subsystem. The aluminum unit features large multi-pin fiber optic connectors, and official U.S. Government property markings with the Harris logo. It includes all original caution labels for hot surfaces and ESD sensitivity. This low-serial-number piece served as a critical fiber-optic coupler for distributing voice communications, alarms, and warnings across the ISS modules via redundant digital audio buses. Any prior history or flown status is unknown.Sold as-is, untested.NO INTERNATIONAL SHIPPING FOR THIS ITEM, DOMESTIC USA ONLY BUYERS.