This is 4-Pack compatible HP 125A toner cartridges. Includes 1 each CB540A (black) CB541A (cyan) CB543A (magenta) CB542A (yellow). Each toner cartridge is manufactured to be comparative to the original in terms of quality and page yield. Extensive testing and R&D have enabled us to produce cartridges that will not only save you monebut also provide a high quality product to ensure long term customer satisfaction.