Wall-mount cabinet secures and organizes 21U of 19-inch rack equipment in network closets, classrooms and other locations with limited floor space. Clear acrylic window allows you to monitor equipment without unlocking door. Maximum load capacity of 200 lb. Front door includes shatter-resistant clear acrylic window Locking steel cabinet vented at sides, top and bottom Secures 21U of 19 in. rack equipment up to 16.5 in. deep