The Thermaltake Toughpower Cable Management 850 Watt power supply has been built with the latest in power supply circuitry and industrial grade components. With specifications such as 87%+ efficiency, power protection and the performance needed for today's demanding computers, the Toughpower line of power supplies have made their competition 'power down'. Going into this review, I thought I had a solid 750 watt power supply, and boy was I wrong - the Thermaltake Toughpower 850 lived up to its name and put mine to shame. I have always known Thermaltake to produce quality products but unfortunately, I have never owned one.