Rear Door Heat Exchanger for AI & Data Centers

• High-Density AI Data Centers: Supports 30–50kW rack loads for GB200/GB300 GPU clusters.
• HPC & Supercomputing Clusters: Eliminates hot spots in high-performance computing environments.
• Traditional Data Center Retrofit: Enables phased liquid cooling upgrades without major infrastructure changes.
• Colocation & Enterprise Data Centers: Reduces facility cooling loads and supports mixed-density rack deployments.
• Edge & Compact Data Centers: Ideal for space-constrained facilities with limited raised-floor cooling capacity.

The rear door heat exchanger offers a non-intrusive, space-efficient solution for increasing rack power density without major facility overhauls. EXTRCOOL’s RDHX combines direct hot air capture, high heat rejection efficiency, and flexible deployment to meet the evolving needs of AI and HPC workloads, ensuring stable, energy-efficient operation year-round.

1.What is a Rear Door Heat Exchanger used for?
A Rear Door Heat Exchanger (RDHX) is a rack-mounted liquid cooling solution that replaces the rear door of a server rack, capturing hot exhaust air and transferring heat to a chilled water loop. It eliminates hot spots and supports higher rack power densities.

2.What are the benefits of an RDHX over other liquid cooling solutions?
RDHX units require no additional floor space, integrate directly into standard racks, and enable phased liquid cooling adoption. They eliminate hot air recirculation, reduce reliance on facility air conditioning, and support both new and retrofitted data centers.

3.Is the unit compatible with standard server racks?
EXTRCOOL’s RDHX is designed to fit standard 19-inch server racks and supports standard chilled water pressures and temperatures. Contact our engineering team for tailored compatibility verification with your specific rack and chilled water system.