This Brother Black High Yield Laser Toner Cartridge is the ideal choice for top quality printing. This all-in-one cartridge contains everything you need to keep your Brother printer functioning at peak performance. It includes high quality, high yield toner, specially formulated for Brother printers, for flawless print output that will last for up to 4,000 pages. And because it is a genuine Brother product, you can be sure of reliable performance at all times.