Add a depth-adjustable, ventilated heavy-duty shelf to virtually any server rack or cabinet. With the ADJSHELFHDV 1U Adjustable Ventilated Heavy Duty Shelf, you can add a 1U adjustable heavy duty shelf to virtually any standard 4-post 19" server rack or cabinet. This heavy-duty shelf can be adjusted from 49.5 to 97.4 cm (19.5 to 38 inches) mounting depth to fit your rack, while the vented design improves airflow and helps lower rack temperatures. Made from 1.2mm commercial grade cold rolled SPCC steel that can support up to 150kg of equipment - a robust solution for storing large, non-rack mountable equipment, heavy tools or peripherals in your rack or cabinet.