Compatible replacement imaging drum unit for Lexmark 56F0Z00.Estimated page yield: up to 60,500 pages (black, at 5% coverage).Compatible with: Lexmark MS321, MS321dn, MS421, MS421dn, MS421dw, MS521, MS521dn, MS621, MS621dn, MS622, MS622de, MX321, MX321adn, MX321adw, MX421, MX421ade, MX521, MX521ade, MX521de, MX522, MX522adhe, MX622, MX622ade, MX622adhe series printers.Package includes: 1 x imaging drum unit.