What's in the box: ejet Compatible for hp 950xxl 951xxl combo ( 1 Black,1 Cyan,1 Magenta,1 Yellow) Printer Compatibility: These 950xxl 951xxl ink cartridges combo pack works seamlessly with HP OfficeJet Pro 8100, 8600, 8610, 8616, 8620, 8625, 8630, 8660, OfficeJet 251dw, 271dw, 276dw printers Page Yield: Up to 3,000 pages per 950XXL black ink cartridge, and up to 2,500 pages per 951XXL color ink cartridge (cyan, magenta, yellow) at 5% coverage on A4 paper, ideal for high-volume home and office printing Latest Updated Chip: Our 950XXL 951XXL ink cartridges combo pack comes with the newest chip version, ensuring smooth recognition, stable performance, and crisp, clear prints for all compatible printers Anti-Clogging Premium Ink: Specially formulated ink prevents print head clogging, delivers consistent high-quality printing, and reduces streaks or blurring for both text and images