LD Okidata Compatible 44992405 Black Laser Toner Cartridge for the MB451W MFP Printers Page Yield: 1,500 | Shelf Life: 24-36 Months The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty. All LD branded products are backed by a 100% satisfaction and LIFETIME guarantee We offer lightning fast shipping on all printing supply and inkjet photo paper orders For use in the following printers: MB451W MFP