This SuppliesMAX Drum Unit/High Yield Toner Cartridge Value Combo Pack is Designed to be Compatible with the Okidata 43501901_1PK/43502001_8PKVB and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 25000 Page Yield on 5% Page Coverage Model: SuppliesMAX Okidata 43501901_1PK/43502001_8PKVB Drum Unit/High Yield Toner Cartridge Value Combo Pack Color: Black Yield: 25000 Pages Machine Compatibility: See overview tab Manufacturer Warranty: 30 DAYS Our compatible toner, inkjet cartridges, ribbons, copier and other supplies are constructed to original OEM specifications. Guaranteed Superior Quality to Meet or Exceed High Priced OEM Products. Product packing may vary but it will not affect quality and warranty.