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

An 850W power supply is a high-performance, multi-application power solution that strikes a balance between power output, energy efficiency, and cost-effectiveness, making it a top choice for a wide range of mid-to-high-end computing systems. From high-end gaming desktops and professional design workstations to small business servers and industrial control equipment, this power supply is engineered to deliver stable, efficient, and reliable power—even under the most demanding conditions. 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 embody the company’s development concept of "Adhere to quality, advocate innovation, and win-win cooperation," combining cutting-edge technology, premium components, and uncompromising quality control. Yijian’s 850W power supply features a full-modular design, a game-changer for system builders and enthusiasts. The detachable braided cables allow users to customize their cable management, reducing clutter in the chassis, improving airflow, and enhancing the overall aesthetic of the system. This design also simplifies hardware upgrades and maintenance, as users can easily add or remove components without disconnecting unnecessary cables. The braided cables are not only durable and flexible but also reduce electromagnetic interference (EMI), further improving system stability. For users seeking a more budget-friendly option, Yijian also offers a non-modular version of the 850W power supply, retaining the same core performance and reliability while eliminating the modular cables. At the core of the 850W power supply is Yijian’s advanced circuit design, developed by a team of over 20 R&D professionals with more than 10 years of industry experience. Many team members are former employees of renowned power supply companies like Great Wall, FSP, Delta, and Enhance, bringing a wealth of expertise to the design process. The active PFC circuit ensures a power factor of over 0.95, optimizing energy utilization and reducing the load on the mains grid. The resonant LLC converter topology enhances conversion efficiency, achieving 80Plus Gold certification (over 90% efficiency at typical load) or 80Plus Platinum certification (over 92% efficiency at typical load), depending on the model. This high efficiency translates to lower electricity bills and reduced heat generation, extending the lifespan of the power supply and connected components. The 850W power supply’s single +12V rail design delivers a continuous current output of up to 70.8A, ensuring ample power for high-performance CPUs and GPUs. This design eliminates the current limitations of split rails, making it ideal for systems with multiple high-power components, such as dual-GPU setups or workstations with multi-core processors and professional graphics cards. The power supply’s ability to handle transient power spikes—common during gaming or rendering—ensures that hardware receives consistent power, preventing crashes or performance issues. Thermal management is a critical aspect of the 850W power supply’s design. Yijian has equipped the unit with a 12cm hydraulic bearing fan, known for its low noise and long service life. The fan’s intelligent speed control system adjusts based on 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 designed with a large surface area and high thermal conductivity, ensuring efficient heat dissipation even during prolonged high-load use. For industrial applications, the power supply is engineered to withstand wide temperature ranges (-20℃ to 70℃) and voltage fluctuations, making it suitable for harsh environments. 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 a top priority for Yijian, 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.