Genuine HP 950XL High Yield Black Ink Cartridge for HP Officejet Pro 8600 printers. This original HP cartridge, suitable for both inkjet and laser print technology, offers reliable performance and quality results. This package includes one cartridge in open packaging, ideal for those in need of a replacement or spare. Experience consistent, professional-looking prints with this authentic HP product. Only one cartridge is included in this listing. I have another listing that is sealed with two cartridges if interested.