5 Packs Black Replacement for HP 564XL Ink Cartridge High Yeild Compatible with HP Photosmart 5520 6510 6520 7510 7520 7515 C6380 C310a 5 Pack contains: 5 x black Fast Shipping, Excellent Price, Page Yield: 800 pages per black5 All ink cartridges with new chip and ink, ensure compatibility,show accurate ink levels (Non original) Printer Compatibility: HP Photosmart 5510 5520 6520 6510 7510 7520 7515 C6380 C310a B8550 B8553 C5300 C5373 C5388 C6300 C6350 6383 D5445 D5468 C309 C510