Genuine Brother® toner cartridges are designed specifically to work with our laser system design. Each component of a Brother® laser product is designed to work seamlessly with the other. All original Brother® toner cartridges are manufactured to the highest possible standards in controlled clean rooms. Each cartridge is rigorously tested in order to assure quality and performance. Device Types: Laser Printer; Color(s): Magenta; Page-Yield: 1400.