500KW In-Row Liquid-to-Liquid Coolant Distribution Units(CDU)

500KW In-Row CDU

500KW In-Row Coolant Distribution Units(CDU) | Optimized for NVIDIA AI Servers

The Lian Li 500kW In-Row Coolant Distribution Unit (CDU) is a high-capacity, row-based liquid-to-liquid heat exchange system engineered for modern microarchitecture environments. It establishes a precise, isolated thermal barrier between primary facility water networks and sensitive secondary clean-loop compute infrastructure.

Featuring an optimization-driven internal geometry and an architectural in-row footprint, the unit slots directly into standard server rows. This positions the thermal dissipation mechanism directly adjacent to high-power hardware, eliminating thermal dead zones, minimizing pipeline fluid drag, and driving down data center PUE (Power Usage Effectiveness).

Built explicitly for the demanding profiles of artificial intelligence nodes, generative computing matrices, and high-performance multi-tenant clouds, it continuously balances hydraulic pressure and dynamically matches changing workloads.

Product Specifications：

Features of In-Row CDUs

• High-Efficiency Thermal Dissipation: Equipped with premium, industrial-grade brazed plate heat exchangers (BPHE) that deliver consistent 500kW thermal transfer under peak processing loads. Integrated variable-frequency drives (VFD) dynamically modulate pump speeds to match immediate heat cycles, significantly slashing parasitic energy consumption.
• Mission-Critical Redundancy: For uninterrupted 24/7/365 operations, the system relies on fully redundant, hot-swappable dual canned motor pumps configured in N+1 or 2N topologies. An integrated Automatic Transfer Switch (ATS) ensures seamless shifting between secondary electrical grids or UPS circuits during grid anomalies.
• Advanced Fluid Control & Safety Architecture: Multi-point moisture sensors, optical leak-detection catch basins, and autonomous isolation valves mitigate physical risk. The metallurgy and seals are compatible with treated deionized water, glycol-water solutions (up to 40%), and low-viscosity dielectric chemistries.
• Intelligent Edge Telemetry: Tracks volumetric flow rates, system pressures, temperature differentials, and fluid purity scales via an on-unit color touchscreen dashboard. 

3. Hardware & Platform Compatibility

The NexFlow™ 500kW In-Row CDU provides universal, cross-platform thermal management. It is meticulously tuned to match the exact secondary-loop hydraulics, pressure caps, and approach temperatures required by high-density silicon architectures:

Server Platforms: Full optimization for NVIDIA® Blackwell (GB200, GB300, B200, B300) systems, Hopper (H100, H200) architectures, and high-density accelerator nodes.

Enterprise CPU Systems: Certified for Intel® Xeon® 6 architectures and AMD EPYC™ 9005 Series processors.

Server Form Factors: Readily integrates with Open Compute Project (OCP) layouts and mainstream liquid-cooled blade enclosures from tier-one manufacturers.

Return and exchange policy:

1. Domestic customers: Within 7 days of receiving the goods, our quality department confirms that it is a product quality problem;
2. Overseas customers: Within 15 days of receiving the goods, our quality department confirms that it is a product quality problem;
3. The outer packaging is damaged, and abnormalities occurring during transportation are not within the scope of return or exchange (please contact the freight company for claim settlement, and our company can assist with claim settlement);
4. We only provide after-sales service to customers who purchase directly. If you purchase our products from a dealer or a third party, please contact the seller for after-sales service;
5. The product cannot be disassembled after receipt, and cannot be modified or repaired without our permission. Keep the outer packaging and keep the labels intact, otherwise no after-sales service will be provided.