This 1U server rack shelf set (2-included) optimizes vertical space in 19 in. 4-post racks, combining heavy-duty Q235 carbon steel construction (1.5 mm thickness) with a 50 lbs weight capacity per shelf for secure storage of routers, switches, and network gear. The perforated base design enhances airflow to reduce overheating risks, while the 10 in. depth allows efficient organization of equipment to minimize clutter. Easy installation is ensured with included screws and nuts, requiring only a Phillips screwdriver. Universal compatibility with standard racks and a rigid, wobble-free structure make it ideal for stabilizing heavy devices like firewalls or UPS systems. By maximizing space utilization and promoting thermal management, these shelves streamline setups, protect hardware longevity, and maintain a professional, interference-free rack environment. Perfect for IT professionals seeking durability, ventilation, and space optimization in compact server rooms or data centers.