The second-generation EA900 series 1kVA-20kVA UPS is a new-generation general-purpose power supply designed and manufactured by Easitek based on its innovative research achievements and application experience. Utilizing advanced DSP digital control technology, it significantly enhances product performance and system reliability, while achieving higher power density integration and miniaturization. Additionally, to cater to the personalized needs of small and medium-sized enterprises, both domestically and internationally, as well as small power supply environments, this high-end, low-power online UPS product is specifically designed to provide high-reliability power protection for departmental servers, small local area networks, workstations, industrial control computers, small equipment, and other precision electronic instruments.