The product is a genuine original black toner cartridge specifically designed for Brother printers such as the HL-3180CDW, HL-3170CDW, and HL-3140CW. This high-quality toner cartridge ensures crisp and clear black prints with an estimated yield of 2,500 pages at 5% coverage. As it is an original product from the Genuine Brother Brand, it guarantees compatibility and optimal performance with the specified Brother printer models. This black toner cartridge is a reliable choice for those looking for consistent and professional results when printing documents and images.