This is a compatible or remanufactured HP CF331A toner cartridge guaranteed to perform with HP Laser Printers. It replaces the genuine (OEM) HP CF331A toner cartridge. This toner cartridge is made with top quality components and new toner to give you the highest quality printouts every time. This compatible or remanufactured for HP CF331A toner cartridge is specially engineered to meet or exceed the highest standards of quality reliability and page yields. Although this cartridge is not made or endorsed by HP it offers customers an economical alternative to expensive OEM HP CF331A cartridges and comes with our satisfaction guarantee. This toner cartridge is compatible with LaserJet Enterprise M651 Series/ MX-3501N/ MX-4501N and many more