The RM-137 Rack Mount Kit contains all the components necessary to mount an LDC-3908, LDC-3916, or LDC-3926 in a 19-inch wide, 24-inch deep rack or enclosure with support columns 20.5 inches from the front mounting surface. Two rack mount brackets and all necessary mounting hardware are provided. Note: this kit supports heavy equipment; ensure heavy equipment handling practices are followed to prevent injury and damage.