These printers use the CF501A cartridge:
Click On a Printer to View it's Cartridges
          HP Color LaserJet Pro M-254
          HP Color LaserJet Pro M-254dw
          HP Color LaserJet Pro M-254nw
          HP Color LaserJet Pro M-280
          HP Color LaserJet Pro M-281
          HP Color LaserJet Pro M-281cdw
          HP Color LaserJet Pro M-281fdw
          HP Color LaserJet Pro MFP M-280nw
          HP Color LaserJet Pro MFP M-281 CDW
          HP Color LaserJet Pro MFP M-281fdn
          HP Color LaserJet Pro MFP M-281fdw