The flight computer from a destroyed ship. Recovered flight computers can offer details on the movements and intentions of ships before meeting their demise. Taking a black box from the scene of an accident is frowned on by authorities, but can offer lucrative profits on the black market.
— In-Game Description
ALERT: Black Boxes are illegal in most systems.
Since version 1.4 they can be found also in weak signal source and salvageable wreckage. They can be sold at a Search and Rescue contact.