Compatible with: LaserJet 1220, HP LaserJet 1200se, HP LaserJet 1200n, HP LaserJet 1200, HP LaserJet 1220se, HP LaserJet 3300, HP LaserJet 3310mfp, HP LaserJet 3320mfp, HP LaserJet 3320nmfp, HP LaserJet 3330mfp, HP LaserJet 3380, HP LaserJet 3330, HP LaserJet 3310, HP LaserJet 3320, HP LaserJet 3320n Page Yield*: 3,500* For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance. 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 SPEEDYINKS compatible replacement cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page. Professionally manufactured by SPEEDYINKS. HP is a registered trademark of HP Inc. and is not affiliated with and does not endorse SPEEDYINKS. Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.