HP guide description: "Base enclosure (includes RJ-45 door with spring) For use only on HP EliteBook 850 G2 Notebook PC and HP EliteBook 750 G2 Notebook PC computer models". OEM documentation only; not bench-tested.
Source notes
HP EliteBook 850 G2 Notebook PC / HP EliteBook 750 G2 Notebook PC / HP ZBook 15u G2 Mobile Workstation Maintenance and Service Guide, printed p36 (PDF p46): "799688-001".