D-Link Dealer provided by "2U Bottom Openable Wall Mount Enclosure Designed Exclusively for CCTV DVR stoarge& Safety Special bottom openable feature with Lock & Key for ease of service Front Glass Door ( Tinted,Toughened, with Lock & Key) 2 Pairs of 19"" Mounting Rails with U-Marking Conforms to DIN 41494 or equivalent ISO standards Depth Adjustable mounting slots Top & Bottom panel with Ventilation and cable entry facility"