This Raymarine ACU-400 was pulled off a 2022 boat after an update to the Lighthouse system software made it so the system lost communication. A new unit was purchased and put into place without using any of the associated parts that come included with the ACU. The unit was sent to Raymarine for refurbishment, and it was found that the only problem was the update didn’t get applied to this unit. Patched and tested (see photo with notes from manufacturer) and working fine.

All parts that came with the new unit are included, and everything except the ACU is new. Big savings for a minimally used unit.