Hexus posted a review on the Corsair One Pro
A quote from the article:
Corsair's take on the future of gaming PCs. In our opinion, the biggest change in the PC landscape during the last five years hasn't been massively more performance - you expect faster components year on year - but rather the drive towards energy efficiency. We've mentioned on many occasions that it's possible to build a really good gaming system without the need for a small power station nearby.Corsair One Pro Review @ Hexus
A very pertinent case in point is our standard gaming test system, comprising an overclocked Core i7 chip, 32GB of RAM, dual SSDs and, of course, a premium graphics card. If built with due care and attention, a PC featuring a GeForce GTX 1080 Ti consumes less than 300W at the wall when gaming at 4K. And it's quiet into the bargain, too.
So, in early 2017, it makes perfect sense to take advantage of the enviable performance-per-watt characteristics to build systems small in size but big on performance. Guess what, that is exactly what a well-known company has done, and it happens to be Corsair. Let's take a look at the 'category defying' Corsair One, shall we?