The HP 507X (CE400X) Black High Yield Toner Cartridge is a genuine/original product manufactured by HP in China. This toner cartridge is designed for use with specific HP LaserJet printers, such as the 500 MFP model. It is a high-yield cartridge, meaning it can print more pages before needing to be replaced, ensuring cost-effective printing. The black color of the cartridge ensures crisp and clear black printing results, making it ideal for professional documents and images.