... tips,buzzer,PTZ preset,email,snapshot &FTP uploadSmart HDDs Management:non-working HDD hibernationg,HDD faulty alarm,Raid ... disk and NetworkBackup ModeNetwork download/Flash stick/movable HDD/SATA HDD/DVD-RWInterfaceVideo Input4channel8channel16channelVideo Output2channel TV output BNC, ... RS485USB Interface2 x USB2.0Hard Disk1 SATA ports(Max 2048G)2 SATA ports(Max 4096G)EnvironmentalPower Supply12V/3. ...