A server cabinet, also known as a rack enclosure, is a structured framework designed to organize and protect network equipment. It typically consists of vertical mounting rails (e., 19-inch racks), adjustable shelves, and ventilation systems. Server racks are most commonly found in data center environments, but can also be used. Server racks or cabinets are vital in your data center, just like the foundation of building a house and they make it possible to make your IT hardware organized and neat. Here is everything you need to know about server racks before you equip your data center or server room. They're shallow and don't need much cooling.