A power supply unit (PSU) is the core energy supply component of all electronic equipment, responsible for converting the alternating current (AC) from the mains into stable direct current (DC) that meets the operating requirements of the equipment, and providing reliable power support for the normal operation of various electronic components. Shenzhen Yijian Technology Co., Ltd., a professional PSU manufacturer with over 20 years of experience, has been committed to the R&D, design, production and sales of high-performance PSUs since its establishment in 2006, and has built a comprehensive product system covering PC PSUs, industrial PSUs and server PSUs, with a wide range of applications in personal computers, industrial control equipment, server systems, gaming equipment and other fields. The company’s 20,000 square meter manufacturing base is equipped with 5 advanced production lines and over 500 skilled workers, achieving a monthly production capacity of 300,000 PSUs, ensuring a stable and large-scale supply for the global market. All PSUs of Yijian have passed a number of international authoritative certifications such as UL, EAC, FCC, CE, CCC and RoHS, and the company has obtained ISO9001 quality management system certification and ISO14001 environmental management system certification, fully demonstrating the high quality and international compliance of the products. The R&D team of Yijian’s PSUs is composed of more than 20 professionals with over 10 years of industry experience, and the core members are from well-known power supply enterprises such as Great Wall, FSP, Delta and Enhance, with profound technical background and rich R&D experience. This team has independently developed a variety of PSU products with different power ratings, certification levels and structural designs, including non-modular and full-modular types, covering power ratings from 550W to 3000W, and 80Plus certification levels including Bronze, Gold and Platinum. The high-efficiency PSU products with 80Plus certification have a conversion efficiency far higher than the national standard, effectively reducing energy consumption and heat generation, and saving energy costs for users while improving the operating efficiency of the equipment. In the production process of PSUs, Yijian has adopted a number of intelligent management systems including E-SOP, Andon and MES, realizing the digital and intelligent management of the entire production process. The E-SOP system standardizes the operational process of the production staff, improves the product qualification rate; the Andon system enables real-time discovery and solution of production problems, ensuring the smooth progress of the production process; the MES system realizes the full-process traceability of product information, which is convenient for production management and quality control. The ubiquitous QC team of the company conducts strict quality control on each production link of PSUs: strict incoming quality control (IQC) is carried out before production to ensure that the raw materials and components meet the quality standards; 2-3 QC personnel are arranged to inspect each production process to eliminate defective products in the bud; each finished PSU undergoes more than 30 rigorous tests including electrical performance test, environmental adaptability test and reliability test to ensure the superior quality of the product. Yijian has established a perfect after-sales service system for PSUs, promising to provide 1% spare parts for each order, respond to customer feedback within 2 hours, and issue a comprehensive 8D report within 24 hours to propose targeted solutions. The company’s PSUs have been exported to more than 30 countries and regions including the United States, Europe, Japan, South Korea, Russia and Brazil, and have won high recognition from global customers for their excellent performance, reliable quality and thoughtful after-sales service. As a national high-tech enterprise and a Shenzhen specialized and sophisticated enterprise, Yijian always adheres to the development concept of "adhering to quality, advocating innovation and win-win cooperation", and continues to optimize and upgrade PSU products to meet the diverse and evolving power supply needs of the global market.
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