Thermaltake Toughpower GT 850W ATX 3.1 Standard Power Supply; 80 Plus Gold Efficiency; Smart Zero Fan

ATX 3.1 and PCIe 5.1 Support: Fully compatible with Intel ATX 3.1 specifications, with native PCIe 12V-2x6 (12+4 pin) connectors for modern GPUs.80 PLUS Gold Efficiency: Provides up to 90% efficiency, reducing energy consumption and heat output during operation.Smart Zero Fan Technology: Automatically adjusts fan speed based on load, minimizing noise during low-load operations.Fully Modular Design: Includes low-profile flat black cables, making cable management easier and improving airflow inside your case.High Amperage Single +12V Rail: Provides reliable and stable power delivery, optimized for high-end gaming and workstation builds.