This genuine Brother TN-540 black toner cartridge is a high-quality option for your printing needs. It is compatible with Brother printers and has a unit quantity of 1. The cartridge is designed to produce consistent and reliable results, ensuring that your documents and prints are of the highest quality. The cartridge is black in color and is an original product, which means that it is made by Brother and is designed to meet the highest standards of quality and performance. It is compatible with a range of Brother printers and is ideal for anyone who wants to achieve professional-quality prints and documents.