Compatible with: Brother: HL-J6000 DW, MFC-J5845DW, MFC-J5845DW XL, MFC-J5945DW, MFC-J6545DW, MFC-J6545DW XL, MFC-J6945DW Replaces LC3037BK (3,000 Page) Super High Yield Black compatible ink cartridge Page Yield* Per Cartridge: 6,000 For best results, store in a cool, dry place. Use within 24 months of purchase for optimal performance. *at 5% coverage (ISO/IEC standard) Each cartridge is conveniently equipped with a smart chip that allows you to monitor and track your ink levels Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.