Abacus24-7 Printer Ink HP 564XL Remanufactured [High Yield, New Chip] HP 564 Ink Cartridges Replacements Combo Pack - 2 Black Cartridges Remanufactured High Yield HP 564XL Cartridges, Black Replacement for HP OEM part# CN684WN Page yield: 550 each Compatible with HP Deskjet 3526, Officejet 4620, Photosmart 5525, Deskjet 3521, Photosmart 5522, Photosmart B209a, Photosmart C309a, Photosmart D5445, Photosmart 5515 - B111a, Photosmart 5512 - B111a, Photosmart 5514 - B111h, Photosmart 5520, Photosmart 5510 - B111a, Photosmart 5511 - B111j, Photosmart 6520, Photosmart 7515 - C311a, Photosmart 7510 - C311a, Photosmart 7520 printers ISO Quality Certified. 30 Day Risk-Free Buying. 1 Year Waranty.