Compatible with: Expression: XP-850, XP-860, XP-950, XP-960, XP-970 XP Series: XP-850, XP-860, XP-950, XP-960 Black Page Yield*: 500 Color Page Yield*: 740 For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Replaces T277120 black, T277220 cyan, T277320 magenta & T277420 yellow standard yield cartridges Color: Black, Cyan, Magenta, Yellow Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.