Nice sturdy box. I had to put some oil on each screw and screw and loosen them several times with an electric screwdriver to get a good fit. (The threads are a bit tight). The padding is generous with a small pack so the full length will do, but it will provide a better seal. I've mounted security cameras with a metal plate in the lid to strengthen them. Video and power connectors only fit diagonally, and there's plenty of room for cables.