The Soeteck SY-CDU-RK-50 In-Rack Coolant Distribution Unit is a rack-mounted pump-and-heat-exchange module built for 80 kW of direct-to-chip liquid cooling. In a 536 x 900 x 175 mm chassis it keeps the whole secondary loop inside the 19-inch cabinet, so a dense row of accelerators can be cooled where the building never planned for a liquid plant room. The 7.29 m³/h secondary flow at 50/40 °C runs against 35/45 °C primary design temperatures, and the 1.4 kW pump set keeps the