Control Display Unit (CDU) in excellent condition, only very recently been serviced by GE Aviation in 2016 under work order 119880.
The CDU is used to setup and control the flight route and other key data. The buttons all press as normal, but the screen has not been powered to test (28V screen, and 5V backlighting) and is therefore sold as seen. Any attempts to restore power should be carried out by a professional.
The unit still features its warranty seals. It would make an excellent addition to your flight simulator project.