This SuppliesMAX High Yield Toner Cartridge is Designed to be Compatible with the Lexmark C231HK0 and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 3000 Page Yield on 5% Page Coverage Model: SuppliesMAX Lexmark C231HK0 High Yield Toner Cartridge Color: Black Yield: 3000 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.