The HP CF280XD 80X LaserJet Black Toner Cartridge is a high-quality printer accessory designed specifically for HP printers. This 2-piece toner cartridge is compatible with the 400 M401 model and offers crisp, professional-quality black prints using laser print technology. With the trusted HP brand name, you can expect reliable and consistent performance with each use, making this product a great choice for those looking to maintain the efficiency and quality of their HP printer.