Locking steel cabinet vented at sides, front, top & bottom; Flow-through ventilation keeps equipment cool; Secures 6U of 19″ rack equipment up to 16.5″ deep; Max load capacity: 200lbs; Mounts to wall or rolls on floor (with optional SRCASTER); Includes 12 M6 screws, cage nuts & cup washers, twelve 12-24 screws, removable mounting plate, 3 mounting plate screws & 2 keys;