... 264 Compression • High quality video Display : NTSC (720x480), PAL (704x576) real time display • Multiple Recording/ Search Categories:Date/Time, Event, Manual, Schedule ... interface (Support Capacity from 40G to 3T in Total )Video Input 4 channel, BNC , 1.0V p-p/75 ... without Voltage,Open or ClosedAlarm ModeSensor Input, Motion Detection, Video Loss, Full Disk Space.NetworkEthernet (10/100M ),LAN,WAN ...