Accelsius, a two-phase, direct-to-chip liquid cooling technology, has a new coolant distribution unit (CDU) available.

The company this week announced the general availability of the NeuCool MR250, the company’s first row-based CDU.

The MR250 delivers 250kW of liquid cooling capacity per rack in flexible configurations (1 x 250 kW or 2 x 125 kW/rack).

“The MR250 signals a new chapter for liquid cooling,” said Josh Claman, Accelsius’ CEO. “Two-phase, direct-to-chip solutions are no longer just proofs of concept. They are ready for the scale and reliability that modern data centers demand. With MR250, operators can deploy with confidence, knowing they’re reducing risk, maintenance, and cost across the entire facility.”

The system supports facility water temperatures up to 45°C (113°F) and is compatible with R1233zd(E) or R-515B refrigerants.

Select deployments of the MR250 began late in Q3, with broader rollouts continuing through Q4 and into 2026.

Accelsius said the new CDU is the first in a planned series of "increasingly powerful NeuCool multi-rack solutions," with higher-capacity systems scheduled for release in 2026.

Texas-based Accelsius was originally founded in 2022 by Innventure to commercialize technology developed by Nokia's Bell Labs that had not been productized. Johnson Controls recently invested in the firm.

Accelsius has deployed its technology at several data center labs, and recently posted on LinkedIn that its NeuCool Thermal Simulation Rack is headed to London for deployment at Telehouse's new Liquid Cooling Lab. It has also deployed a cooling system to an Equinix lab in Virginia and at Park Place Technologies' new facility in Cleveland, Ohio.