Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity. Built-in 120 mm fan has excellent airflow and low noise, perfect for quiet home or office use. Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking. Flat cables have much greater flexibility to allow for tighter folding and management of cables. Japanese electrolytic capacitors. Specially designed cover designed to effectively dissipate the residual heat.