The Toshiba T-FC556U-K Black Toner is a genuine/original unit designed specifically for Toshiba printers. It is compatible with models such as e-STUDIO6506AC, e-STUDIO5506AC, 5506AC, and e-STUDIO7506AC. This laser print technology toner cartridge is brand new and manufactured in the United States, ensuring high-quality printing results. With its black color and unit quantity of 1, this Toshiba T-FC556U-K Black Toner is an essential component for maintaining the functionality of your printer.