BeElion 4 In to 8 Out Ports,BNC Coaxial TV CCTV DVR Composite Video Switch Splitter Amplifier Box,AHD/CVI/TVI Camera MATERIALS: Metal; POWER: DC12V 2W; Color : Black Shell; APPLICATION: application for School,Home,Factory,Office Security Camera Video Distributor; FUNCTION: Red LED - Power On/Power Off.For Connection to Video Cameras, Multiplexers, DVR etc.; SPECIFICATION:Type : BNC Jack 4 Input to 8 Output,Input Voltage : DC 12V;Input Video : 1.0Vp-p/75Ohm(Max.)2.0Vp-p/75Ohm; BRAND: BeElion Electronics Brand is a Registered Trademark.Only BeElion Seller is authorized to sell.