Lexmark 56F000G Black Return Program Toner Cartridge
Color:Black; Page Yield:6,000; For use in Lexmark printers: MS321dn, MS421dn, MS421dw, MS521dn, MS621dn, MS622de, MX321adn, MX321adw, MX421ade, MX521ade, MX521de, MX522adhe, MX622ade, MX622adhe