This SuppliesMAX Drum Unit is Designed to be Compatible with the Dell 59J78K and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 55000 Page Yield on 5% Page Coverage Model: SuppliesMAX Dell 59J78K Drum Unit Color: Black Yield: 55000 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.