... simultaneouslysupport IE, remote parameter settings, preview, playback and video download- high reliability monitoring special file system, greatly improve ... BNC, 1ch VGA)Video Frame RatePAL 1~25/s,NTSC 1~30/sStream Typevideo and audio streamAudio Input4chAudio Output1chAudio ... network IP cameras, wireless cameras and camera accessories. 4 Channel Hard Disk Video Recorder, H.264 Network DVR, RT-8104V