Many notebook power supplies from this manufacturer are identical in design, meaning they are 100% compatible. Therefore, if you did not receive the exact original number you ordered, it may be a compatible power supply with a different original number. It does not differ in terms of functionality and quality features from the model you originally ordered. This item is a high-quality power supply. It is well-suited as a replacement or secondary device and provides power to your Hewlett-Packard 677777-003 just like your conventional power supply, enabling reliable battery charging. Note: Unless we explicitly state that this is an original product, we supply a compatible product. This means it is not an original product from the manufacturer and is therefore not produced or recommended by them. All brand and product names belong to their respective owners and are used solely for compatibility description.