Lexmark C540H1YG High Capacity Yellow Toner Cartridge (C540H1YG)Lexmark C540H1MG High Capacity Magenta Toner Cartridge (C540H1MG)Lexmark C540H1CG High Capacity Cyan Toner Cartridge (C540H1CG)Lexmark C540H1KG High Capacity Black Toner Cartridge (C540H1KG)