The Thermalright SG850 is an 850-watt PC power supply with 80 Plus Gold certification for high energy efficiency. This fully modular power supply is designed for gaming PCs and workstations, delivering stable performance with Japanese capacitors for enhanced reliability and operating with quiet cooling technology that maintains low noise levels during typical use. It includes comprehensive protection circuits against overvoltage, undervoltage, overcurrent, and short circuits. The black casing measures 150 mm in length, 140 mm in width, and 86 mm in height, making it compatible with standard ATX cases. Modular cables allow for a customized installation, reducing cable clutter and improving airflow. The power supply supports modern graphics cards and processors with dedicated PCIe and CPU power connectors. It operates within an input voltage range of 100-240 V AC and a frequency of 47-63 Hz, suitable for worldwide use. The cooling fan utilizes fluid dynamic bearing technology for extended lifespan and quiet operation. This model is the successor to previous Thermalright power supplies, featuring improved efficiency and component quality.