2-3 Day Lead Time DARK POWER PRO 11 1000W NO COMPROMISE SILENCE AND PERFORMANCE Dark Power Pro 11 1000W is be quiet ’s most advanced PSU ever. With 1000W of continuously available power and an overclocking key that switches between four-rail and single-rail operation, it has sufficient reserves to support any multi-GPU or multi-CPU system you could want to build. be quiet ’s virtually inaudible SilentWings® 3 fan and an unparalleled array of noise-reducing enhancements make it the quietest PSU in its category, perfect for powerful applications that nevertheless need significant quietness. And its full bridge power topology earns it one of the highest power efficiency certification available — 80PLUS® Platinum.  Highlights 80PLUS® Platinum certification and up to 94% power conversion efficiency Virtually inaudible operation thanks to a broad array of optimizations, including the use of a be quiet SilentWings® 3 135mm fan SilentWings® 3 fan features an advanced fan frame, an airflow-optimized fan blade, fluid-dynamic bearing with copper core and a high-quality 6-pole motor for less vibration The funnel-shaped fan opening of the PSU case is significant big and allows high airflow intake 1000 Watts of continuous power provide intensive power reserves for demanding computing applications Overclocking key allows switchover between quadruple independent 12V-rail mode and high-performance single-rail operation NVIDIA SLI Ready and AMD CrossFireX certifications allow you to build powerful Multi-GPU systems with confidence Cable management with extra long cable reach simplifies component installation and reduces annoying clutter, increasing airflow and improving cooling in even the largest PC cases Product conception, design and quality control in Germany More info Energy Efficiency 80PLUS® Platinum certification with up to 94% efficiency Saving power means saving money, but it also mean less waste heat, less cooling required, and overall quieter operation Standby drain less than 0.10Watts Meets Energy Star 6.