Lexmark 56F0Z00 Black Imaging Unit (1Pack) — Replacement for MS321 MS321dn MS421 MS421dn MS421dw MS521dn MS621dn MS622 MS622de MX321 MX321adn MX321adw MX421 MX421ade MX521 MX521de MX521ade MX522 MX522adhe MX622 MX622ade MX622adhe

What's in the box: 56F0Z00 Imaging Unit Black (1Pack). Compatible Printers: MS321dn, MS421dn, MS421dw, MS521dn, MS621dn, MS622de, MX321adn, MX321adw, MX421ade, MX521de, MX521ade, MX522adhe, MX622ade, MX622adhe. High Page Yield: Up to 60000 pages per (at 5 percent coverage per A4 letter). This genuine replacement imaging unit restores consistent monochrome output and reliable performance for the listed Lexmark MS and MX series models.