The be quiet! Pure Power 13 M 550W PSU delivers exceptional performance with 80 Plus Gold efficiency, ensuring reliable power for your system. Its fully modular design simplifies cable management, while semi-passive operation keeps noise levels minimal. Ideal for gamers and professionals, it supports ATX 3.1 standards for cutting-edge compatibility. This power supply unit is ATX 3.1 compliant and PCIe 5.1 compatible, featuring semi-passive cooling for quiet operation. It offers 80 PLUS Gold efficiency, up to 93.8% very high operating efficiency, which means lower power consumption, lower costs, and a cooler, quieter operation. The PSU is equipped with a native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards and 2 PCIe 6+2-pin connectors for support of current-gen GPUs, making it extremely versatile. It provides 550W of continuous power with one massive 12V rail and handles power excursions up to double its rated power with ease, ensuring reliable operation with the next generation of processors and graphics cards. The semi-passive Zero-RPM cooling system allows the fan to turn off completely under low load for ultimate silence. High-class LLC topology provides best-in-class voltage regulation and efficiency, perfect for very quiet systems or upgrading gaming and media creation PCs. Modular cables simplify cable management and routing for a tidy-looking system with smoother airflow, resulting in lower noise and temperatures.