In the technology-driven 21st century, the term 42U server rack is making rounds. People feel curious to know what server racks are. For their information, a server rack is a structure that is designed specifically to store technical equipment. The mechanical machines include servers, routers and switches. The 42U server rack helps hold multiple pieces of gears in one area securely.It is crucial to choose the right server rack.Categories of Server Racks: Now, server racks are of various types like home server racks,