Page Yield*: 2,500 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) This compatible toner comes equipped with 100% brand new parts including an ink smart chip that accurately tracks your ink level Compatible with the following Samsung printers: ML 1910, ML 1915, ML 2525, ML 2525W, ML 2545, ML 2580n, SCX 4600, SCX 4623F, SCX 4623FN, SCX 4623FW, SF 650, and SF 650P Color: Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.