Speedy Inks Compatible Toner Cartridge Replacement for HP 90A / HP90A / CE390A (Black, 4-Pack) For use in: HP LaserJet Enterprise M4555f MFP, HP LaserJet Enterprise M4555fskm MFP, HP LaserJet Enterprise M4555h MFP, HP LaserJet Enterprise 600 M601n, HP LaserJet Enterprise 600 M601dn, HP LaserJet Enterprise 600 M602n, HP LaserJet Enterprise 600 M602dn, HP LaserJet Enterprise 600 M602x, HP LaserJet Enterprise 600 M603n, HP LaserJet Enterprise 600 M603dn, HP LaserJet Enterprise 600 M603xh Page Yield: 10,000* Shelf Life: 24-36 Months Color: Black The use of aftermarket replacement cartridges and supplies does not void your printer's warranty