Compatible with: Epson Expression: XP-520, XP-600, XP-610, XP-620, XP-800, XP-810 & XP-820 The T273XL120 Photo Black compatible ink cartridge has its own designated slot in your printer and is not interchangeable with T273XL020 Black Replaces T273120 / 273 Standard Yield Photo Black Ink Page Yield* Per Cartridge: 500 For best results, store in a cool, dry place. Use within 18 months of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.