Cougar gx-f is a high-quality 80 plus gold certified psu with flawless power delivery in 50°c environments. Compact, efficient, silent and durable, gx-f aurum is the best answer for those looking for the best value in psus.efficient: a true money-saver. To help you save money on your electricity bill, gx-f aurum features a highly efficient design that the 80 plus standard’s requirements.135mm hdb fan. A key component of gx-f aurum is its 135mm hdb fan. Using cougar’s patented groove design, this advanced fan’s blade curvature has been fine-tuned to reduce vibration, helping you enjoy a quieter gaming experience.the internal 135mm hdb fan optimizes the balance between rpm and noise.the hdb technology further extends the fan’s lifespan and reduces acoustic output the psu.ultra-durable- to protect your investment, two key features have been included in gx-f aurum.first, gx-f aurum’s llc, dc-dc and tri-sense(3.3v, 5v, and 12v) design has been created to provide high-quality outputs, with an extremely tight 3% voltage regulation to deliver a stabler operation.second, it includes 105ºc japanese main and standby capacitors to ensure that it will keep providing your computer with stable electrical supply for a long time.gx-f aurum has been designed and thoroughly tested to perform optimally in 50ºc working temperature environments.