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Premium CN627AM (HP 971XL) High Yield Magenta Ink Cartridge fully compatible with the HP OfficeJet Pro X451, X451dn, X451dw, X476, X476dn, X476dw, X551, X551dw, X576, X576dn, X576dw. The use of compatible supplies does not void your printer warranty.
Premium CN628AM (HP 971XL) High Yield Yellow Ink Cartridge fully compatible with the HP OfficeJet Pro X451, X451dn, X451dw, X476, X476dn, X476dw, X551, X551dw, X576, X576dn, X576dw. The use of compatible supplies does not void your printer warranty.