... 264 dvr,network dvr and embedded dvr ,h.264Compression High quality video Display : NTSC (720x480), PAL (704x576) real time FEATURES: Stand-Alone DVR, H ... from 40G to 3T in Total )Video Input4 channel, BNC , 1.0V p-p/75ΩComposite Video ... , Resolution: 800x600/60HZ, 1024x768/60HZAudio Input2 channel, RCAAudio Output2 channel, RCAAlarm Input2 Channel, Trigger closed without Voltage,Open or ClosedAlarm ...