... playback simultaneously,Pause,stop,rewind,fast play,slow play,next file,previous file,repeat,shuffle,backup selectionSearch ModeTime/Date,Alarm,Motion Detection ... hibernation technology,HDD faulty alarm & Raid(Redundancy)Backup ModeNetwork download/Flash stickInterfaceVideo Input4 channel,BNC,1.0Vp-p,75Ω Video Output2 ...