Brand: INKFUNINKFUN is the professional manufacturer of printer peripherals, and main products include ink cartridge and toner cartridges etc,compatible for most famous printer brand and is the big supplier for replacement ink cartridges in the world.This is Compatible ink cartridge replacement for HP 564 ink cartridgesWHAT IS INSIDE?4 x 564XL Black2 x 564XL Cyan2 x 564XL Magenta2 x 564XL YellowCompatible 564 Ink Cartridge for the Printers Listed Below:?HP Photosmart 5520 6520 7520 5510 6510Photosmart 7510 5514 5515 7515 6515 7525Photosmart 5525 C6380 C6350 D5460 D7560 B8550Photosmart Premium C309A C410 C310AOfficejet 4620 Deskjet 3520 3521 3522High Print Yield:550 Pages per 564XL (Black), 750 Pages 564XL per (Cyan/Magenta/Yellow), at 5% coverageWhy choose INKFUN:All products go through a series of strict quality inspections before shipping.Factory With ISO9001 and ISO14001 Certificate Approved, all products certified by REACH,STMC,CE and ROHS.Note:1.Please avoid touching the chips.2.Before placing an order, please be sure to confirm your printer model.3.If the inks do not recognize your printer at the first time ,please take them off and install again.