Guidance for RDHx Deployment

Commissioning and deploying cooling and networking for data centers is a challenge, particularly as data centers evolve to meet the needs of fast-growing and ever-changing IT infrastructure. Rear door coolers can help drive efficient operations in data centers, and offer flexibility in planning for infrastructure before it is installed. However, rear door cooler landscape is shifting, with customers placing more emphasis on features, and less on power.
Dec. 4, 2025

For many years, data center managers looking to deploy rear doors were focused on one core question: How many kW of IT can your rear door cooler handle? Now, while capacity is still important, rear door coolers are often used in tandem with direct-to-chip cooling which offsets the highest heat loads. The function of the rear door is no longer to cool the hottest IT on its own, but rather to provide an incredibly reliable, always-on baseline level of cooling that can efficiently handle the cooling of any IT in a rack that is not covered by direct-to-chip.

This shift in the way that data center managers are thinking about deploying rear doors naturally impacts what characteristics of rear doors are considered to be the most valuable in the industry. Instead of doors with extreme cooling capacity, data center managers are looking for doors that offer high levels of redundancy and efficiency, adding reliability and consistency to their operations. For racks that can contain millions of dollars in IT, maintaining safe operating temperatures is critical for business continuity.

Download now to see the kinds of features we are seeing data center mangers prioritize.