The 4pk 910XL Ink Cartridges for HP OfficeJet Pro printers are compatible with models such as 8010, 8015, 8020, 8021, 8022, 8025, and 8028. These cartridges are in black, cyan, magenta, and yellow colors, with a page yield of 1,500 pages for black and 825 pages for color at 5% coverage. With a chip included, these compatible cartridges from Ejet brand are designed for inkjet print technology and will expire on July 28, 2027. This 4 pack unit offers a convenient solution for printing high-quality documents and images with your HP printer.