Compatible with: Samsung SL-M3820DW, Samsung SL-M3870FW, Samsung SL-M4020ND, Samsung SL-M4070FR, Samsung ProXpress M3320ND, Samsung ProXpress M3370FD Page Yield*: 5000. *at 5% coverage (ISO/IEC standard) For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance. Color: HY Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.