Page Yield*: 9,000 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Fast shipping and award-winning customer service Compatible with: Brother HL-L9310CDW, HL-L9310CDWTT & MFC-L9570CDW, MFC-L9570CDWT The use of compatible cartridges and supplies does not void your printers warranty Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.