It has been more than a year since Thermaltake diversified into the power supply market. We reviewed a few of their mainstream supplies back then and found them to be competitive and appealing products. Today we will have a look at a PSU from their latest high performance series, the Toughpower XT 850W. Thermaltake designed the Toughpower XT series with enthusiasts in mind and the result is a very interesting product with a massive 12V line and a very long range of features. That said, the power output and retail price pit it against the very best products currently available. We will soon see if it has what it takes to compete with the rest of the products of its class.