- Part Numbers: Lexmark 521 Black.
- Printers: MS710N, 710DN, MS711DN, MS810N, 810DE, 810DN, 810DTN, MS811N, 811DN, 811DTN, MS812DE, 812DN, 812DTN.
- Estimated page yield: 6,000 pages.
- Includes (1) 521 Black toner cartridge, certified to work.
- AOS cartridges are carefully designed to offer reliable compatibility and outstanding prints. No streaks, no fading, no leaking. High quality guaranteed.