This cabinet-type CDU acts as the core heat exchange hub of the liquid cooling system for high-density computing scenarios. Adopting a liquid-to-liquid indirect heat exchange architecture, it is specially developed for AI intelligent computing centers and high-density data centers. The device connects to the chilled water source system of the computer room at the upper end and the terminal liquid cooling cabinets at the lower end, serving as a core unit to realize precise distribution of cooling capacity and ensure stable heat dissipation of computing equipment, and providing efficient, reliable and intelligent heat dissipation support for high-density computing clusters.