The Xerox Cartridge-Free ColorQube 108R00930 Black Ink Pack is a genuine/original product specifically designed for Xerox printers model 8570 8580. This unit specifically includes 2 black ink cartridges suitable for these printers, ensuring high-quality prints and reliable performance. Compatible with Xerox printers, this black ink pack is a convenient and efficient solution for printing professionals looking for a dependable ink supply. The 2 units are not used but brand new, just two previous units have already been used.