HP 971 Yellow Ink Cartridge (CN624AM) for HP Officejet Pro X451 X476 X551 X576. HP 971 ink cartridges work with: HP Officejet Pro X451, X476, X551, X576. Cartridge yield (approx.): 2,500 pages. Up to 2x more prints with Original HP ink vs refill 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 971 ink cartridge (CN624AM). Color: Yellow.