SFX Power Supply for Mini PCs: Compact, 80Plus Certified

SFX power supply stands as a compact and high-efficiency power solution engineered for small-form-factor (SFF) computing systems, and Shenzhen Yijian Technology Co.,Ltd leverages over 20 years of professional power supply R&D and manufacturing experience to craft SFX power supply products that balance miniaturization, performance and reliability. Designed with a compact physical form factor, SFX power supplies are typically 125mm×63.5mm×100mm in size, which is significantly smaller than standard ATX power supplies, making them the ideal power core for SFF PC cases such as ITX, Mini-ITX and small desktop chassis. Yijian’s SFX power supply products are developed in line with international SFX design standards, featuring a highly integrated internal circuit layout and high-power-density component selection to ensure that the compact body can deliver stable power output ranging from 300W to 850W, fully meeting the power demands of SFF systems equipped with mid-range CPUs, low-profile graphics cards and multiple storage devices. All SFX power supply products of Yijian obtain global authoritative certifications including UL, EAC, FCC, CE, CCC and RoHS, and are designed with 80Plus efficiency certification grades covering Bronze, Gold and Platinum, with the Platinum-grade products achieving a conversion efficiency of over 92% at typical load, which effectively reduces energy consumption and heat generation in compact chassis with poor heat dissipation conditions. In terms of circuit protection, Yijian’s SFX power supply is equipped with a comprehensive multi-layer protection system including overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection (OCP), short circuit protection (SCP) and overtemperature protection (OTP), which can quickly respond to various electrical faults and avoid damage to SFF system components caused by power abnormalities. The application scenarios of Yijian’s SFX power supply cover a variety of SFF computing needs: for home entertainment Mini-ITX hosts, it provides stable power for 4K video playback, light game running and daily office work; for industrial control SFF equipment, it adapts to the narrow installation space of industrial control cabinets and ensures continuous and reliable power supply for industrial control boards and peripheral sensors; for portable workstation systems used by designers and field engineers, it matches the lightweight design of the chassis and supports the power needs of mobile design and data processing. Yijian’s SFX power supply adopts high-quality Japanese 105℃ high-temperature resistant capacitors and high-efficiency MOSFETs as core components, and undergoes more than 30 rigorous performance tests including aging test, temperature cycle test and load fluctuation test during the production process, ensuring a mean time between failures (MTBF) of over 100,000 hours. The product is designed with a low-noise hydraulic bearing fan, which intelligently adjusts the fan speed according to the real-time load and temperature of the power supply, realizing the balance between cooling performance and operating noise, and solving the problem of excessive noise caused by poor heat dissipation in compact chassis. Backed by Yijian’s professional R&D team with over 10 years of industry experience, the SFX power supply can provide customized design services according to customer needs, including personalized power output adjustment, custom cable length and interface configuration, to adapt to the unique structural requirements of different SFF chassis. Yijian’s perfect after-sales service system provides 1% spare parts for each SFX power supply order, and the sales team responds to customer feedback within 2 hours, and the technical team provides a detailed 8D problem-solving report within 24 hours, providing all-round technical support and after-sales guarantee for global customers using SFX power supply products. Whether it is for individual users building high-performance SFF hosts or enterprises customizing industrial control SFF equipment, Yijian’s SFX power supply is a high-quality choice that combines compact design, high efficiency and reliable performance, and fully meets the diverse power needs of small-form-factor computing systems in the global market.