Compatible with: Dell Color Laser 2150cdn, 2150cn Dell Multi-Function 2155cdn, 2155cn Compatible with Dell Part Numbers: 331-0719, MY5TJ, N51XP Page Yield*: 3,000 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) All LD compatible and remanufactured cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.