Compatible with: Brother: HL-L6400DW, HL-L6400DWG, HL-L6400DWT, HL-L6400DWX MFC-L6900DW, MFC-L6900DWG, MFC-L6900DWX Compatible with TN850 High Yield & TN880 Super High Yield Page Yield* Per Cartridge: 20,000 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) All LD compatible and remanufactured cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.