snippet: The DQ 18-18-5 is a lockable metal box for safely storing a DVR. It provides an additional layer of physical security against tampering and theft of a recording device. The unit can be bolted down to any surface or combined with a mount to be positioned on a wall. The box is made of black matte steel and it will blend in seamlessly with other electronics. The size listed is for the outside dimensions, not the internal measurements. Please choose a lockbox with enough extra room for the DVR recorder and the cabling that will be going into it. Also, during installation make sure the fans have enough clearance from the wall to allow air flow. (Page 1)