This SuppliesMAX Toner Cartridge Combo Pack is Designed to be Compatible with the Copystar TK-8519MP and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 30000 Page Yield on 5% Page Coverage Model: SuppliesMAX Copystar TK-8519MP Toner Cartridge Combo Pack Color: Black/Cyan/Magenta/Yellow Yield: 30000 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.