Green Office Technologies Brother TN-315 High Yield Toner Cartridge Set Exceptional Performance at Flexible Cost Dependable Results with High Yield Brother Cartridges Genuine Brother toner for Consistent, High-Quality results with Brother products Yields approximately 6,000 pages (Mono) in accordance with ISO/IEC 19798 on letter/A4 size paper Yields approximately 3,500 pages (Color) in accordance with ISO/IEC 19798 on letter/A4 size paper