The Dell K4971 Black Toner Cartridge CT200481 is a genuine original product specifically designed for use with the Dell 3000cn and 3100cn printers. This black toner cartridge is suitable for laser print technology and comes as a single unit. Compatible with both the 3000cn and 3100cn models, this product ensures high-quality printing results with crisp and clear black text. The Dell brand ensures reliability and compatibility with your printer, making this toner cartridge a dependable choice for all your printing needs.