HP Elite-book 840 is one of the best Laptop made by Hewlett-Packard. I am using HP EliteBook 840 since very long and I have taken a very good experience so far, the look of this laptop gives me the formal touch and the best thing about this laptop is the performance and the quality of this product is awesome. The processors and the other internal parts of this laptop are really of good quality, also the battery backup of this laptop is around 6 to 8 hours. And after experiencing it I must say that it is total value for money.