Black Print Yield: Estimated print yield up to 5,500 pages per cartridge replacement for 212A Black Toner Cartridge, Estimated print yield up to 4,500 pages per cartridge replacement for 212A Color Toner Cartridge. (Clear text and images, stable, no fading, no spots, no streaks) Package Including: (4 Pack, Black + Cyan + Magenta + Yellow) Green Toner Supply Compatible 212A Toner Cartridge Color Set Replacement for HP W2120A W2121A W2122A W2123A Toner Cartridge Compatible printers Compatible With Laser-Jet Enterprise M554dn, M555dn, M555x, Enterprise MFP M578dn, M578f, Enterprise Flow MFP M578c, M578z Printer In order to achieve better printing results, please store the unused/unopened toner cartridges in a dry and cool place. Avoid sun exposure and humid conditions. Green Toner Supply is committed to creating a reliable supplier of Toner Drum Ribbon Label Tape and Ink Cartridge, we will provide you with Limited WARRANTY and Customer SATISFACTIONS GUARANTEE Compatible With Laser-Jet Enterprise M554dn, M555dn, M555x, Enterprise MFP M578dn, M578f, Enterprise Flow MFP M578c, M578z Printer.