These printers use the CF325X JUMBO cartridge:
Click On a Printer to View it's Cartridges
          HP LaserJet Enterprise M-806 DN
          HP LaserJet Enterprise M-806 X+
          HP LaserJet Enterprise M-830 Z
          HP LaserJet Enterprise flow M-830
          HP LaserJet Enterprise flow M-830 Z
          HP LaserJet Enterprise flow M-830 Z NFC