HP
RK3-0526-000CN
is compatible in the following HP Models:
HP LaserJet 500 Printer series
HP LaserJet Enterprise M507 - 1PV86A
HP LaserJet Enterprise M507 - 1PV87A
HP LaserJet Enterprise M507 - 1PV89A
HP
HP LaserJet Enterprise M507n - 1PV86AR