Back box to enable external cable entry or use of cable protection equipment. Holes on top and side for 3/4 inch conduits or M25 cable protection pipes. Compatible with AXIS T94Q01A Wall mount, all AXIS M11-E/P13-E/Q16-E/Q1755-E/Q1910-E/21-E/22-E outdoor fixed box camera wall mounts and AXIS T92E Series and AXIS T93E05 Fixed camera housings.