Speedy Inks Compatible Toner Cartridge Replacement for HP 90X CE390X High Yield (Black) For use in: M4555F, M4555FSKM, M4555H, M602DN, M602N, M602X, M603DN, M603N, M603XH Page Yield: 24000* | Color: Black | *Average cartridge page yield in accordance with ISO IEC 19752 Shelf Life: 24-36 Months The use of aftermarket replacement cartridges and supplies does not void your printer's warranty