This 1U vented rack shelf adds 15.75" (40cm) of mounting depth to any EIA-310-compliant 19-inch rack or cabinet. The vented design helps to improve airflow and maintain optimal temperatures for the mounted equipment. The cantilever tray includes cage nuts and screws for quick deployment. The fixed-rack shelf is made of 17-gauge (1.4mm) SPCC steel for long-term durability and sturdiness while supporting up to 30lb (14kg) of equipment. Accommodate server rack equipment, accessories, or non-mountable devices for ease of access and connectivity. The large venting holes on the shelf surface enable improved airflow to dissipate heat and helps maintain optimal equipment temperatures.