OptiCool has teamed up with Belden to integrate its liquid cooling solution with the vendor’s data center racks.

The partnership will enable data center firms to combine OptiCool’s rear-door heat exchangers with Belden’s racks and cabinets, so that “advanced cooling can be brought straight to the rack to deliver reliable, scalable, AI-ready data center operations,” the companies said.

They claim this will make it easier to kit out existing data centers to meet the cooling demands of the GPUs required to run AI workloads.

“AI is changing what data centers need to deliver, but it shouldn’t always require a ground-up rebuild,” said Brian Kennedy, Belden’s global vertical leader for data centers. “By pairing our racks, power, and connectivity with OptiCool’s rear‑door heat exchangers, we give operators a practical way to turn existing white space into AI‑ready capacity, without disrupting their current environment. These solutions are designed to work with any server, storage, and networking approach operators choose.”

Delivering a liquid cooling solution as a package at rack level means it can be deployed quickly, without the complexity associated with traditional design and integration, the companies said. It can support up to 120kW per rack.

“Our partnership with Belden is a foundational step in delivering the more complete solutions customers need as they plan for higher-density AI workloads,” said OptiCool VP of Sales, Matt Roberts. “By combining Belden’s rack infrastructure with OptiCool’s two-phase rear-door cooling technology, we can help simplify deployment, reduce integration challenges, and support the next generation of data center environments.”

As well rear door heat exchanges, New York-based OptiCool sells refrigerant pumps, aisle containment systems, and cooling distribution units. Earlier this year it announced a partnership to supply liquid cooling systems to Sabey Data Centers.