Data centers are an essential part of todays’ economy but have also become a huge drain on our energy resources. With the growth of cloud computing, HPC, AI, and Micro Data Centers just to name a few, this trend is not disappearing anytime soon. What can data center and facility managers do to reduce energy consumption? How can they drive down TCO while making the data center sustainable and greener? The answer is airflow and cooling optimization for both new and existing data enters, with typical ROI results of about 1 year or less.