4 channel AHD real-time DVR
                 
                
                    
                        
                        
                            
                            4 channel AHD real-time DVR
                            4 channel AHD-M real-time encode and decode.Support multi analog, network hybrid input, NVR mode support onvif.1*VGA. 1*HDMI  HD output Audio: 4ch input, 1ch output 1*SATA(max. 4G), 1*RS485, 1*RJ45(10M/100M), 2*USB, DC12V 2A.