With quality chip: New compatible ink cartridges are conveniently equipped with a Latest Upgraded Chip to ensure full working compatibility with your printer. Compatible with: HP OfficeJet Pro 8100, 8600, 8610, 8620, 8615, 8630, 276dw, 251dw, 8625, 8640, 8660, 271dw Printers. What's in the box: Compatible for HP 950XL 951 Ink Cartridges(2x Black, 1x Yellow, 1 x Magenta, 1 x Cyan| 5 Pack). Approximate page yield: Up to 2,300 pages per black cartridge and 1,500 pages per color cartridge, 5% coverage at A4 paper. LxTek replacements for 950XL 950 951 XL ink cartridge are strictly tested with industry quality control processes to work flawlessly and last for a long time.