The RK419WALVS 4U 19 inch Secure Horizontal Wall Mountable Server Rack is a lockable, solid steel storage rack that provides a robust solution for wall mounting telecom, network or server equipment, and includes two 120mm fans, for improved airflow. This 4U rack can be mounted to a wall in a server room, office, or above a doorway in rooms lacking the space for a full-size rack, to expand your workspace and keep your equipment protected from unauthorized access. Constructed to EIA-RS310 standards, the server rack allows equipment to be mounted horizontally, and offers a hinged lockable front cover as well as a lockable body. Alternatively, non-rackmount equipment can be mounted vertically with the included bottom cover, using the rack as a wall case. The bracket mounting holes (used to mount to a wall or desk) are positioned at 16 inches apart, matching standard stud measurements for easy installation.