Seasonic's flagship PRIME FANLESS TX-700 is now available for $245.99. While another 700W PSU is also coming soon (from SilverStone) Seasonic's industry-leading 12-year warranty is what seals the deal to us. In fact, Seasonic is the only PSU brand we recommend with no hesitation. Our three units are incredibly stable, and simply unstoppable.
"PRIME Fanless TX utilizes the fanless technology, which eliminates the fan noise completely, ensuring truly quiet operation. The unit not only is rated to be 80PLUS Titanium efficient, but it also has the highest power output on the fanless power supply market at the moment. The high quality components inside and the innovative circuit design result in clean and stable power output. The fully modular cables allow for better cable management in the computer case.
The PRIME Titanium Series achieves the highest level of 80 PLUS® Titanium certification on the market with its 94 % efficiency at 50 % system load."
Source: Amazon