The be quiet! Pure Power 13 M 850W fully modular ATX 3.1 PSU excels with 80 PLUS Gold efficiency up to 94.4% and Cybenetics Platinum certification for low ripple and stable voltage via LLC topology. Handling double power excursions up to 1700W for PCIe 5.1 GPUs, it features a semi-passive 120mm Silent Wings fan for zero-RPM mode under light loads, ensuring whisper-quiet operation below 15 dB(A). Native 12V-2x6 connector and up to five PCIe 6+2-pin support next-gen cards, while Japanese capacitors and full protections (OVP/UVP/SCP/OPP/OTP/OCP) guarantee 10-year reliability. Flat modular cables simplify routing for tidy airflow in gaming rigs and workstations demanding efficiency and silence.