The Brother TN315BK Black Toner Cartridge is a genuine/original product designed for use with Brother printers. This high-quality toner cartridge is specifically formulated for laser print technology, ensuring crisp and professional black prints. With its compatible model number TN-315BK, this product is ideal for those looking to maintain the performance and quality of their Brother printer. The box may have been opened, but the product inside remains unused and ready for installation.