The Genuine HP 950 951 Printhead Replacement is designed for use with various HP OfficeJet Pro printers, such as the 8600, 8610, 8620, 251DW, and 8100 models. This printhead includes multicolor (CMYK) ink colors and is compatible with specific HP printer models. It features spring-loaded slot receptacles for easy installation and comes with a manufacturer warranty of 1 month. Additionally, this product may carry a California Prop 65 warning due to potential chemical exposure. Made by HP in Taiwan, this unit quantity of 1 printhead is a reliable and high-quality replacement for your printer needs.