4 Camera H.264 Embedded DVR 1 SATA HDD support,USB 2.0,VGA.D1 at ... 100/120FPS dual encoding streams, smart phone monitoring 4 Camera H.264 Embedded DVR ... 4ch video input,1ch audio input,1 SATA HDD support,USB 2.0,VGA ... supportAudio Input/Output1CH RCAHard Disk1 SATA port, Max 2TB HDD supported Search ModeTime/Date,Alarm,Motion Detection & Exact ...