The PFB301C is a Ceiling Mount Bracket from Dahua that comes in aluminum & PC material and used for Speed Dome. Features: Material: Aluminum Ceiling Mount Bracket Neat & Integrated design Specifications: Model DH-PFB301C General Material Aluminum & PC Dimension (W x H x D) Φ133mm(W) x 41mm(H) Pipe Thread 11/2 ” PF Operating Temperature -40ºC ~60ºC Humidity 0~90% RH Load Bearing 7.0Kg Weight 0.25kg Applicable Model PFA100, PFA101, PFA102, PFA110, PFA111, PFA114