This is the world's first liquid-cooled 15kW power supply developed for supercomputers and high-performance server applications. It accepts a 380~480Vac three-phase input and converts it to a 48V/15kW output. This product utilizes advanced high-frequency power electronics design and digital control technology, complemented by 3D structural design and thermal optimization methods, achieving industry-leading power density and meeting the conversion efficiency of the 80+ Titanium standard, placing it at the forefront of the industry. Furthermore, thanks to the liquid cooling method and optimized thermal management, this 15kW power supply does not require significant derating at low voltage like conventional CRPS power supplies do. It can operate without derating or with only minor derating at low voltage inputs. Up to four 15kW power supplies can be connected in parallel, supporting an output power of up to 60kW/1250A on the 48V DC bus, greatly facilitating the implementation of downstream power transmission paths and significantly improving system power density and efficiency. Currently, this 15kW PSU power supply has achieved mass production and supply.