Sturdy:19"W x 14"D x 3.46"H,this 2U shelf is made from 1.5MM thickness cold rolled steel;Electrostatic powder coat preventing rust and corrosion;Reliable and durable Weight capacity:The load-bearing capacity of a single cantilever shelf is 55 pounds,and this updated version of the cantilever tray adds back support, with a load-bearing capacity of up to 110 pounds Ventilation and Cooling:Ventilation design at the bottom and sides,helps dissipate heat and prevents hot spots, ultimately improving the overall cooling efficiency and reducing the risk of equipment damage due to overheating Easy to use:this 19" rack shelf is easy to install,with instructions or videos for reference;Accessories including installation kits, anti slip stop and cable tie,convenient for equipment protection and cable management Application:network rack shelf fits all 19" racks and cabinets,especially for holding heavy or oversize items,like NAS,UPS and AV equipments;different depth