850W ATX3.1 Power Supply — 80Plus Gold/Platinum, Full-Modular

An 850W power supply is a high-performance, multi-purpose power solution designed to cater to the diverse needs of mid-to-high-end computing systems, from gaming desktops and professional workstations to small enterprise servers and industrial control equipment. Shenzhen Yijian Technology Co., Ltd., a leader in PC power supply manufacturing with over 20 years of experience, has crafted its 850W power supply to reflect the company’s business purpose of "quality first, customer first, win by excellence," combining advanced technology, premium components, and rigorous quality assurance. Yijian’s 850W power supply features a single +12V rail design, a critical advantage for modern computing systems where CPUs and GPUs draw the majority of power from the +12V rail. This design eliminates current limitations associated with split rails, delivering a continuous, stable current output (up to 70.8A) to support high-performance hardware such as Intel Core i7/i9 processors, AMD Ryzen 7/9 processors, and flagship GPUs like NVIDIA RTX 4080 or AMD RX 7900 XTX. The power supply’s ability to handle transient power spikes—common during gaming or rendering—ensures that hardware receives consistent power, preventing crashes, freezes, or performance throttling. Energy efficiency is a hallmark of Yijian’s 850W power supply, which holds 80Plus Platinum certification, achieving conversion efficiency of over 92% at typical load, 90% at 20% load, and 89% at 100% load. This level of efficiency not only reduces electricity costs but also minimizes heat generation, extending the lifespan of both the power supply and connected components. The active PFC circuit further optimizes energy usage, with a power factor of over 0.95, making the power supply compliant with global energy efficiency standards and suitable for use in energy-conscious environments such as offices and data centers. The R&D team at Yijian, composed of industry veterans with over 10 years of experience, has integrated advanced technologies to enhance the 850W power supply’s performance and reliability. Resonant LLC converter topology reduces switching losses and EMI, while a high-quality capacitor bank ensures stable voltage output even under fluctuating loads. The power supply’s ultra-low ripple and noise (below 40mV) protect sensitive components like high-speed memory and SSDs, ensuring smooth operation of resource-intensive applications such as video editing, 3D modeling, and machine learning. For thermal management, Yijian has equipped the 850W power supply with a 12cm PWM fan featuring a hydraulic bearing, which offers a perfect balance of airflow and noise reduction. The fan’s intelligent speed control adjusts based on the power supply’s temperature, operating silently at low loads (20dB or less) and ramping up gently under heavy load to maintain optimal temperatures. The internal heat sink is precision-machined to maximize heat dissipation, ensuring the power supply operates within a safe temperature range (0℃ to 60℃) even during prolonged high-load use. Yijian’s commitment to quality is evident in its strict production and testing processes. The 850W power supply is manufactured in a 20,000-square-meter factory certified to ISO9001 and ISO14001 standards, with 5 automated production lines and over 500 skilled workers. The factory’s intelligent systems—E-SOP, Andon, and MES—streamline production, ensure consistency, and enable full traceability of each unit. Every power supply undergoes over 30 tests, including aging tests (1000 hours at full load), high/low temperature cycling, short-circuit protection testing, and EMI testing, to ensure reliability and compliance with international standards. The ubiquitous QC team oversees every stage of production, from raw material inspection to final testing, eliminating defects and ensuring that only the highest-quality products reach customers. Safety is paramount in Yijian’s design, and the 850W power supply includes a comprehensive suite of protection features: over-voltage, over-current, over-temperature, short-circuit, under-voltage, and over-power protection. These functions work together to safeguard the power supply and connected hardware from damage caused by electrical anomalies, providing users with peace of mind. All 850W power supplies are certified to UL, TUV, 3C, CB, FCC, CE, and other global standards, ensuring compatibility and safety in markets worldwide. Yijian’s after-sales service further reinforces the value of its 850W power supply. The company provides 1% spare parts for each order, enabling quick replacements in case of failure, and responds to customer feedback within 2 hours. A detailed 8D report is delivered within 24 hours to address issues, with solutions tailored to the customer’s specific needs. Products are exported to over 20 countries and regions, with local distributors and service centers ensuring timely support. Whether for a gaming enthusiast, a creative professional, or a small business owner, Yijian’s 850W power supply delivers the performance, efficiency, and reliability required to power critical computing operations.