Video Surveillance Products, AXIS T94F01M J-Box/Gang Box Plate. Bracket for mounting on 4" square, 4" octagon, single or double-gang junction box. RJ45 coupler included. For M3006/7, 5503-921
Axis Communications - Surveillance Camera J-Box Gang Box Mounting Plate T94F01M | eBay
Axis Communications - Surveillance Camera J-Box Gang Box Mounting Plate T94F01M | eBay