These racks allow unrestricted access to equipment, simplifying installation and maintenance procedures. However, they offer minimal physical security and dust protection. . What Is a Network or Server Rack? A network rack (also called a server rack) holds networking equipment such as servers, modems, uninterruptible power supply (UPS) units, routers, network switches, and audio and video equipment. Additionally, NEMA 12 server cabinets provide some water resistance and protect server equipment from water infiltration due to. . Dustproof server rack and cabinets differ from each other only in appearance: the rack has an open design, and the cabinets are closed. Due to the presence of various parameters, an important part of designing a room designed for storing server hardware is their choice. Most sites writing product reviews are driven by affiliate sales, which directly influence the equipment they recommend.