PREVENT UNAUTHORIZED ACCESS: This 5U 19’ hinged rack mount security cover is designed to cover 4U of network equipment or servers while maintaining convenient quick access via lock and key VENTED AIRFLOW: This server rack panel with a vented front is designed to facilitate airflow & provide visual access to equipment STURDY CONSTRUCTION: The server rack cage is a robust EIA-310 compliant solution made with SPCC commercial cold-rolled steel and provides physical security and controlled access to your equipment EASY TO INSTALL: This fully assembled server cabinet door can be installed without removing or powering down the protected equipment already in place and includes mounting hardware as well as 2 keys