This ink cartridge 4 pack is compatible with HP printers and uses inkjet print technology. The cartridges are specially designed for various HP printer models including Office Pro 8100 eprinter, Office Pro 8600 Premium e-All-in-One Printer-N911, and Officejet Pro 276dw 251dw Multifunction Printer. The pack includes 2 black, yellow and blue cartridges, each with a reset chip and a page yield of 2300 for black and 1500 for color. The cartridges are a special version and not OEM. The unit quantity is as selected and the manufacturer warranty is for 3 years.
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