This is the 1st 15kw liquid cooling power supply for super-computing/high performance server in the world, it accepts 180~528Vac 3 phase input and delivers 48V/15kw power at its output. With advanced high-frequency power electronics design and digital control techniques, plus 3D mechanical and thermal optimizations, this 15kw power supply realized the highest power density in the industry so far, and its high efficiency complies with 80+ Titanium standard. Moreover, thanks to the liquid cooling and improved thermal management, low line de-rating in general CRPS products is minimized or avoided in this 15kw power supply. Up to 4 of the 15kw power supplies in parallel can pump out 60kW/1250A power to the 48V DC bus, which brings great continence to the downstream power delivery path's implementation and significantly increases the system density and efficiency. At present, the 15kw PSU power supply has achieved mass production and supply.