Do it Wiser Compatible Toner Cartridge for Oki B411d B411dn B431d B431dn MB461 MB471 MF491- Okidata 44574701 (4,000 Pages, Black) Estimated page yield: 4,000 pages, at 5% coverage (depends on printer and usage) Compatible with part number: Oki 44574701 Compatible with printers: Okidata MB461 MFP, Okidata MB471, Okidata MB471W, Okidata B411d, Okidata B411dn, Okidata B431d and Okidata B431dn Our Do It Wiser smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free 1 High Yield Black Cartridge4,000pages. Oki B411d. Oki B411dn. Oki B431d. Oki B431dn. Oki MB461. Oki MB471. Oki MF491.