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

An 850W power supply is a high-performance, future-proof component designed to meet the evolving needs of mid-to-high-end computing systems, offering the ideal balance of power, efficiency, and versatility. It is a top choice for high-end gaming desktops, professional workstations, small enterprise servers, and industrial control equipment—where stable power delivery, energy efficiency, and long-term reliability are non-negotiable. Shenzhen Yijian Technology Co., Ltd., a National High-tech Enterprise and Shenzhen Specialized and New Enterprise with over 20 years of experience in PC power supply manufacturing, has developed its 850W power supply to reflect the company’s core values of unity, innovation, pragmatism, and progress, combining advanced technology, premium components, and strict quality control. Yijian’s 850W power supply is built with a focus on performance and durability, featuring a single +12V rail design that delivers a continuous current output of up to 70.8A. This design eliminates the current limitations of split rails, making it ideal for systems with high-power components such as multi-core CPUs, flagship GPUs, and multiple storage devices. 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. The active PFC circuit ensures a power factor of over 0.95, optimizing energy utilization and reducing the environmental impact, while 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). Efficiency is a key feature of the 850W power supply, which not only lowers electricity bills but also reduces heat generation, extending the lifespan of the power supply and connected components. The power supply’s low standby power consumption (below 0.3W) further enhances its eco-friendly credentials, making it suitable for systems that are left on for extended periods. For thermal management, Yijian has equipped the 850W power supply with a 14cm PWM fan featuring a hydraulic bearing, which provides superior airflow while maintaining low noise levels. The fan’s intelligent speed control adjusts based on temperature, operating silently at low loads 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. Yijian’s R&D team, consisting of over 20 professionals with more than 10 years of experience, has integrated advanced technologies to enhance the 850W power supply’s performance. The use of Japanese long-life electrolytic capacitors ensures stable voltage output even under extreme loads, while the precision-machined heat sink and fan combination provides efficient thermal management. The power supply’s voltage regulation is precise, with a load regulation of less than ±2%, ensuring that hardware receives consistent power regardless of load fluctuations. The 850W power supply’s compatibility with modern hardware standards is a key advantage. It supports PCI-E 5.0, making it compatible with next-generation GPUs, and includes a comprehensive interface configuration: 20+4pin motherboard connector, 8pin (4+4pin) CPU connector, multiple SATA 3.0 connectors, and dedicated M.2 power connectors. This ensures compatibility with all modern motherboards, processors, storage devices, and graphics cards, making it a versatile choice for system builders and upgraders. 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 with 5 production lines and over 500 workers, operating under ISO9001 and ISO14001 certifications. 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, 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 comprehensive protection functions: over-voltage, over-current, over-temperature, short-circuit, under-voltage, and over-power protection. These features 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.