This set includes four compatible high-yield toner cartridges for the HP 201X series: black, cyan, magenta, and yellow. Each cartridge is designed to deliver reliable performance with your HP printer, ensuring consistent print quality. These cartridges replace the original HP part numbers CF400X, CF401X, CF402X, and CF403X, among others. Using compatible toner cartridges does not void your printer's warranty, providing an economical alternative to OEM products.