Compatible with: B4400, B4400N, B4500, B4500N, B4550, B4550N, B4600, B4600N, B4600N PS Page Yield*: 3000 Color: Black. *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: Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.