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DCX Liquid Cooling Systems Announces New 8MW Coolant Distribution Unit, Optimized for 45°C Warm-Water Cooling in Next-Gen NVIDIA Vera Rubin AI Deployments

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DCX Liquid Cooling Systems Announces New 8MW Coolant Distribution Unit, Optimized for 45°C Warm-Water Cooling in Next-Gen NVIDIA Vera Rubin AI Deployments
News

News

DCX Liquid Cooling Systems Announces New 8MW Coolant Distribution Unit, Optimized for 45°C Warm-Water Cooling in Next-Gen NVIDIA Vera Rubin AI Deployments

2026-01-23 21:18 Last Updated At:21:31

WARSAW, Poland--(BUSINESS WIRE)--Jan 23, 2026--

DCX Liquid Cooling Systems is proud to announce the second generation Facility Distribution Unit (FDU V2AT2). Designed to support the infrastructure shift driven by AI deployments at scale, new CDU supports 45°C warm-water cooling for NVIDIA’s NVL72 GB200 / GB300 Blackwell and Vera Rubin architectures.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260123068139/en/

FDU V2AT2 delivers up to 8.15MW of heat transfer capacity while providing record breaking flowrate, enabling 45°C warm-water operation —temperature level that can eliminate the need for chillers on the heat-rejection side in many deployments. This new cooling system has also built in most capable heat exchanger in the industry, which further enables heat reuse and chillerless heat transfer.

“As the datacenter industry transitions to AI factories, operators need cooling system that won’t be obsolete in one platform cycle,” said Maciek Szadkowski, CTO at DCX. “The FDU V2AT2 replaces multiple legacy 1.3MW CDUs and enables 45°C supply water operation. This new category of CDUs has minimum thermal loss with AT2 approach temperature, and provides multi-megawatt cooling at the hall level. That opens a clear path to NVIDIA Vera Rubin architecture and beyond while simplifying cooling loop topology and significantly reducing both CAPEX and OPEX of datacenter liquid cooling system.”

Purpose-Built for 45°C Warm Water and Chillerless Heat Rejection

NVIDIA has highlighted 45°C water supply as a key design point for Vera Rubin rack-scale systems—explicitly enabling data centers to operate without traditional water chillers in the cooling plant for these workloads.

The DCX FDU V2AT2 is engineered to take full advantage of that shift by supporting ASHRAE W45 / W+ warm-water classes and maintaining tight control to avoid condensation, helping operators move from refrigeration-centric cooling to a simpler, more scalable warm-water approach.

From “Row CDU” to Facility-Scale Distribution

Unlike CDUs designed for a single row or small cluster, the FDU 2 is engineered for a new cooling topology that supports complete data halls / facility installations, efficiently supporting large-scale, high-density AI server racks with high flow, high availability and sustainable 45 ° C temperature class operation.

Key capabilities include:

Availability

The DCX FDU V2AT2 is available for hyperscale and high-density AI data center projects effective immediately. Reference architectures, integration guidance, and project sizing support are available upon request.

About DCX Liquid Cooling Systems

DCX Liquid Cooling Systems is a premier global manufacturer offering an extensive range of sustainable liquid cooling solutions, including both Direct Liquid Cooling and Immersion Cooling technologies. The company designs & manufactures Server Immersion Enclosures, Coolant Distribution Units (CDUs) including Hyperscale FDU (facility sized CDU) systems, CPU and GPU coldplates, manifolds and other components of liquid cooling system. DCX delivers Hydro & Immersion Containers and facility-based systems. Hardware solutions are complemented with liquid cooled data hall design and implementation services, making DCX the first choice for liquid cooling systems’ supplier.

The Facility Coolant Distribution Unit—the new generation of liquid cooling for hyperscale data centers.

The Facility Coolant Distribution Unit—the new generation of liquid cooling for hyperscale data centers.

DUBAI, United Arab Emirates (AP) — Iran’s top prosecutor on Friday called U.S. President Donald Trump’s repeated claims that he halted the hangings of 800 detained protesters there “completely false.” Meanwhile, the overall death toll from a bloody crackdown on nationwide demonstrations rose to at least 5,002, activists said.

Activists fear many more are dead. They struggle to confirm information as the most comprehensive internet blackout in Iran's history has crossed the two-week mark.

Tensions remain high between the United States and Iran as an American aircraft carrier group moves closer to the Middle East, something Trump likened to an “armada” in comments to journalists late Thursday.

Analysts say a military buildup could give Trump the option to carry out strikes, though so far he's avoided that despite repeated warnings to Tehran. The mass execution of prisoners had been one of his red lines for military force — the other being the killing of peaceful demonstrators.

“While President Trump now appears to have backtracked, likely under pressure from regional leaders and cognizant that airstrikes alone would be insufficient to implode the regime, military assets continue to be moved into the region, indicating kinetic action may still happen,” New York-based think tank the Soufan Center said in an analysis Friday.

Trump has repeatedly said Iran halted the execution of 800 people detained in the protests, without elaborating on the source of the claim. On Friday, Iran’s top prosecutor Mohammad Movahedi strongly denied that in comments carried by the judiciary’s Mizan news agency.

“This claim is completely false; no such number exists, nor has the judiciary made any such decision,” Movahedi said.

His remarks suggested Iran’s Foreign Ministry, led by Abbas Araghchi, may have offered that figure to Trump. Araghchi has had a direct line to U.S. envoy Steve Witkoff and conducted multiple rounds of negotiations over Iran’s nuclear program with him.

“We have a separation of powers, the responsibilities of each institution are clearly defined, and we do not, under any circumstances, take instructions from foreign powers,” Movahedi said.

Judiciary officials have called some of those being held “mohareb” — or “enemies of God.” That charge carries the death penalty. It had been used along with others to carry out mass executions in 1988 that reportedly killed at least 5,000 people.

Meanwhile, Mohammad Javad Haji Ali Akbari, the Friday prayer leader in Tehran, mocked Trump as a “yellow-faced, yellow-haired and disgraced man" who is "like a dog that only barks.”

“That foolish man has resorted to threatening the nation, especially over what he said about Iran’s leader,” the cleric said in comments aired by Iranian state radio. ”If any harm were to occur, all your interests and bases in the region would become clear and precise targets of Iranian forces.”

Iran's foreign ministry lashed out at a European Parliament resolution adopted Thursday which slammed “repression and mass murders being perpetrated by the Iranian regime against protesters in Iran.” The resolution called for the release of those detained and urged the European Council to designate Iran's paramilitary Revolutionary Guard, which was key in putting down the nationwide protests, as a terrorist organization.

The foreign ministry expressed “its strong revulsion at the insulting assertions” of the resolution. In a statement issued Friday, it stressed that "any illegal or interventionist decision or position concerning the armed forces of the Islamic Republic of Iran and the country’s security defenders will be met with reciprocal action by Iran, and responsibility for the consequences will rest with those who initiate such actions.”

The latest death toll was given by the U.S.-based Human Rights Activists News Agency, which reported that 4,716 of the dead were demonstrators, 203 were government-affiliated, 43 were children and 40 were civilians not participating in the protests. It added that more than 26,800 people had been detained in a widening arrest campaign.

The group's figures have been accurate in previous unrest in Iran and rely on a network of activists in Iran to verify deaths. That death toll exceeds that of any other round of protest or unrest in Iran in decades, and recalls the chaos surrounding Iran's 1979 Islamic Revolution.

Iran’s government offered its first death toll Wednesday, saying 3,117 people were killed. It added that 2,427 of the dead in the demonstrations that began Dec. 28 were civilians and security forces, with the rest being “terrorists.” In the past, Iran’s theocracy has undercounted or not reported fatalities from unrest.

The Associated Press has been unable to independently assess the death toll, in part because of authorities cutting access to the internet and blocking international calls into the country.

The American military meanwhile has moved more military assets toward the Mideast, including the aircraft carrier USS Abraham Lincoln and associated warships traveling with it from the South China Sea.

A U.S. Navy official, who spoke on condition of anonymity to discuss military movements, said Thursday the Lincoln strike group is in the Indian Ocean.

Trump said Thursday aboard Air Force One that the U.S. is moving the ships toward Iran “just in case” he wants to take action.

“We have a massive fleet heading in that direction and maybe we won’t have to use it,” Trump said.

Trump also mentioned the multiple rounds of talks American officials had with Iran over its nuclear program prior to Israel launching a 12-day war against the Islamic Republic in June, which saw U.S. warplanes bomb Iranian nuclear sites. He threatened Iran with military action that would make earlier U.S. strikes against its uranium enrichment sites “look like peanuts.”

“They should have made a deal before we hit them,” Trump said.

The U.K. Defense Ministry separately said its joint Eurofighter Typhoon fighter jet squadron with Qatar, 12 Squadron, “deployed to the (Persian) Gulf for defensive purposes noting regional tensions.”

Iran commemorated “the Day of the Guardian” on Friday, an annual event for its Revolutionary Guard.

To mark the day, an Iranian state television channel aired a typically religious talk show Thursday night that instead saw its cleric and prayer singers look at Iranian military drones. They fired up the engines of several of the Shahed drones, one version of which has been used extensively by Russia in its war on Ukraine.

A man identified as a member of the security forces, who wore a surgical mask and sunglasses during the telecast to hide his identity, also made a threat in mangled Hebrew toward Israel, trying to say: “We are closer to you than you think.”

Konstantin Toropin in Washington, and Melanie Lidman in Tel Aviv, Israel, contributed to this report.

In this photo released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei speaks in a meeting, in Tehran, Iran, Saturday, Jan. 17, 2026. (Office of the Iranian Supreme Leader via AP)

In this photo released by an official website of the office of the Iranian supreme leader, Supreme Leader Ayatollah Ali Khamenei speaks in a meeting, in Tehran, Iran, Saturday, Jan. 17, 2026. (Office of the Iranian Supreme Leader via AP)

People walk at Tehran's historic Grand Bazaar, Tuesday, Jan. 20, 2026, in Iran. (AP Photo/Vahid Salemi)

People walk at Tehran's historic Grand Bazaar, Tuesday, Jan. 20, 2026, in Iran. (AP Photo/Vahid Salemi)

People walk at Tehran's historic Grand Bazaar, Tuesday, Jan. 20, 2026, in Iran. (AP Photo/Vahid Salemi)

People walk at Tehran's historic Grand Bazaar, Tuesday, Jan. 20, 2026, in Iran. (AP Photo/Vahid Salemi)

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