Our 822xl ink cartridge combo pack Replacements for Epson contains: 822XL ink cartridges 4 pack ( Black, 1x Cyan,1x Magenta,1x Yellow) Compatible Printers: 822XL ink cartridges combo pack works with Epson WorkForce Pro WF-3820WF-3823,WF-4820,WF-4830,WF-4833,WF-4834 Printer Latest Upgraded Chip: Our 822XL ink cartridges combo pack installed with the latest upgraded chip, ensure the high compatibilit, accurately track the ink level, ensures smooth and high-efficient printing, consistently delivering true-to-life photos that resist fading and smudging Higher Page Yield: Up to 1100 pages per 822XL black ink cartridge and 1100 pages per color ink cartridge at 5% coverage of letter/A4 paper Safety protection：Our 822XL ink cartridge will be packaged in individual sealed packaging to reduce external damage during transportation and avoid ink leakage and chip damage.Please kindly reach us via Amazon if you have any questions about our ink cartridges.