Compatible with: HP Color LaserJet Color LaserJet Enterprise Enterprise LaserJet LaserJet Enterprise: MFP M680dn, MFP M680f, MFP M680z LaserJet Pro 600 Color MFP M675 Professionally manufactured by LD Products Page Yield* Per Cartridge: 21,000* For best results, store in a cool, dry place. Use within 36 months of purchase for optimal performance. *Average cartridge Page Yield* in accordance with ISO IEC 24711. *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.