The number of racks in a data center varies widely depending on its size and purpose, ranging from a handful in small server rooms to tens of thousands in hyperscale facilities. In short, it's highly variable. A typical enterprise data center might house hundreds of racks, while a large colocation facility could contain. When thinking about data centers, a common question is: how many servers fit inside these facilities? The answer depends on factors like size, design, and purpose. A server rack is a metal frame or cabinet designed to hold servers, networking, and auxiliary equipment.