Well, there is not much that is wrong with the Corsair RM850i. It performs very well, has a bunch of useful features. Personally, I liked the zero rpm fan mode and the corsair link functionality. The fact that it did not have issues with my UPS was an added bonus. Combine that with a 7 year warranty, the deal just gets better. The only problem I see with it is the price. At Rs 14,499 on amazon.in it is a little expensive. If you want to save a few bucks, you could get the rmx series which are essentially the same power supplies without the corsair link functionality. Still, I’ll give this a 9.5/10.