HP 971XL Magenta Ink Cartridge (CN627AM) for HP Officejet Pro X451 X476 X551 X576. HP 971 ink cartridges work with: HP Officejet Pro X451, X476, X551, X576. Cartridge yield (approx.): 6,600 pages. Get up to 2x the pages with Original HP XL ink cartridges compared to standard cartridges. Original HP ink cartridges: genuine ink for your HP printer. Ensure that your printing is right the first time and every time with HP printer ink: 971 ink. What's in the box: 1 New Original HP 971XL ink cartridge (CN627AM). Color: Magenta.