These printers use the CF280X cartridge:

HP LaserJet Pro 400 M401A

HP LaserJet Pro 400 M401N

HP LaserJet Pro 400 MFP M401A

HP LaserJet Pro 400 MFP M401D

HP LaserJet Pro 400 MFP M401DN

HP LaserJet Pro 400 MFP M401DW

HP LaserJet Pro 400 MFP M425DN

HP LaserJet Pro 400 MFP M425DW