Accelsius has introduced a new cooling distribution unit (CDU) for two-phase liquid cooling.

The company this week introduced the NeuCool IR150.

The IR150 is described as a fully integrated rack-level cooling solution that combines a two-phase coolant distribution unit, 42U of IT rack space, and built-in liquid and vapor manifolds in a single 800mm-wide enclosure, offering up to 150kW of capacity.

The IR150 integrates a two-phase CDU directly into the IT enclosure, allocating 200mm to cooling infrastructure and 600mm to server space.

Single-phase cooling systems often rely on water being circulated to heat plates, which remove heat from the IT gear. Accelsius’ two-phase approach, however, uses a non-conductive dielectric refrigerant.

“The IR150 represents the next evolution of data center infrastructure,” said Josh Claman, CEO of Accelsius. “When the world’s leading chipmaker designs its next-generation AI supercomputers to run on liquid cooling, the industry needs purpose-built infrastructure to deliver it. The IR150 does exactly that, a single, integrated rack that arrives ready to cool the most demanding AI workloads, with minimal chiller infrastructure, no water treatment, and no compromise on reliability.”

Texas-based Accelsius was originally founded in 2022 by Nasdaq-listed industrial firm Innventure to commercialize technology developed by Nokia's Bell Labs that had not been productized. Johnson Controls and Legrand are investors.

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.