Rack servers strike the balance between simplicity and scalability, making them more versatile for most SMB and enterprise deployments. They provide added security measures compared to open racks, ensuring the safety of sensitive equipment. Choose Mounting Type Wisely: While wall-mounted racks are space-saving, they may have weight limitations, whereas floor-standing options offer greater load-bearing capacity. However, a. Core Functions & Advantages of Server Racks 2. For example, a standard 42U rack can hold dozens of 1U to 4U servers, saving over 70% of floor. What Is a Server Rack? A server rack is a metal enclosure or frame used to store and organize IT equipment such as servers, routers, switches, and networking gear.