In-Row CDUs are full rack-sized Coolant Distribution Units installed alongside a row of server racks to provide efficient data center cooling. CDUs circulate coolant in a closed loop system on the secondary, cooling side and utilizes facility water on the primary, heat rejection side. CDUs provide cooled fluid to cold plates within the server racks to maximize heat transport from processors and DIMM modules. Coolant Distribution Units contain pumps, a fluid reservoir, a power supply, a control board and a heat exchanger to regulate and remove heat for effective data center cooling. The capacity of In-Row CDU is on the scale of 600-800KW, enough heat dissipation to cool 5-6 high power server racks. In-Row CDUs enable greater power and compute density in the same design footprint when replacing traditional air cooling systems, unlocking quieter, higher performance levels, greater reliability, and safer operation.
Leveraging entirely liquid In-Row Cooling Distribution Units within the data center eliminates the need for fan or blower trays or excessive forced convection to reach the same cooling performance. By reducing airflow and the introduction of mechanical vibration, CDUs reducing acoustic noise, offering a safer environment for technicians and fewer data read-write errors from reduced vibration.