Corsair enthusiast series tx850 850w atx12v v2.31 / eps12v v2.92 80 plus bronze certified semi modular high performance power supply new 4th gen cpu certified haswell ready
efficiency is important — less heat is generated, so your system stays cool and your energy bill is lower. Tx series psus are 80 plus certified to operate at a guaranteed 82% or better efficiency, even at maximum load.
The 140mm double ball-bearing fan automatically adjusts its speed to deliver the proper amount of airflow, so high-performance power delivery isn't at the expense of noise. In fact, when you're just surfing the web, doing light office applications or otherwise keeping your tx series psu at less than 50% load, the fan doesn't even spin.
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