... >timerpalyback1ch,multi-chSearchtime,loglist,event, ChannelBackupHDD/SpaceAudio:28.8M / h+Video:25 ~ 450M / hStorgeHDD, WEBBackup modelWEB,USB,USB DVD -RWWEB,USB ... DVD -RWWEB,USB, USB DVD -RWPortVideo input4 ch BNC8 ch BNC16 ch BNCVideo output1 ch BNC , 1 ch VGA output( VGA optional )Audio input4ch RCA8ch ...