These printers use the CF321A cartridge:

HP COLOR LASERJET MANAGED FLOW MFP M-680 ZM

HP Color LaserJet Pro MFP M-675 DW

HP LaserJet Enterprise 600 Color M651DN

HP LaserJet Enterprise 600 Color M651N

HP LaserJet Enterprise 600 Color M651XH

HP LaserJet Enterprise 600 FLOW M680Z

HP LaserJet Enterprise 600 MFP Color M675

HP LaserJet Enterprise 600 MFP Color M680DN

HP LaserJet Enterprise 600 MFP Color M680F

HP LaserJet Pro 600 Color MFP M675

HP LaserJet Pro 600 MFP M675