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With the HP 300 Cartridges Black Duo Pack, you'll have an extra cartridge for your HP DeskJet, Envy, or Photosmart printer, in addition to a new black cartridge. This set consists of 2 black cartridges. The cartridges are suitable for the HP printers below. Suitable printers HP Deskjet HP Deskjet D1660 HP Deskjet D1663 HP Deskjet D2530 HP Deskjet D2545 HP Deskjet D2560 HP Deskjet D2563 HP Deskjet D2566 HP Deskjet D2660 HP Deskjet D2663 HP Deskjet D5560 HP Deskjet F2420 HP Deskjet F2480 HP Deskjet F2492 HP Deskjet F4210 HP Deskjet F4224 HP Deskjet F4272 HP Deskjet F4280 HP Deskjet F4580 HP Envy HP Envy 100 D410a HP Envy 110 HP Envy 114 HP Envy 120 HP Photosmart HP Photosmart C4670 Hp Photosmart C4680 Hp Photosmart C4685 Hp Photosmart C4780