My printer used to devour the smaller cartridges so when I discovered this jumbo sized cartridge I gave it a try. I have not bought any other cartridge since. It does exactly what it says on the package, it gives a high yield. I also use its sibling colour cartridge 351XL which is also an excellent product. I always get these products through Amazon but beware of Companies who show them at a low price but charge you a high price for postage.