Dark Power 13 is the most progressive power supply series be quiet! has ever built. An unrivaled efficiency of up to 95.8% earns the PSU its 80 PLUS® Titanium certification. This makes the Dark Power 13 series a paragon of efficiency. Next to an unmatched efficient operation, the patented frameless fan concept with a Silent Wings fan guarantees an optimized cooling effect and a virtually inaudible operation. The overclocking key allows to manually switch between multi-rail and single-rail operation. Dark Power 13’s ATX 3.0 (up to ATX 3.1, depending on region) compliance and compatibility with both PCIe 5.0 (PCIe 5.1, depending on region) GPUs and GPUs with PCIe 6+2 connectors underlines its claim to be the high-end PSU of choice for all sophisticated users with next-gen graphics cards, or plans to upgrade.