The be quiet power zone is home for discerning gamers and pc enthusiasts seeking high power top performance and great features power zone 650w hits that sweet spot with granite stability advanced cooling features low noise and great value 650 watts of continuous power output with massive 12v rail design and dc to dc technology make this power supply ideal for overclocking variable speed 135mm silentwings fan with airflow optimized blades copper core fluid dynamic bearing and special 6 pole moto