support 2 HDD port for over 1.5TB SATA Hard disk,support ... search,channel search,LOG searchBackupNetwork backup,USB backup,SATA burn.Video input4 channel BNCVideo output1 channel BNC, 1 channel VGA output ... setup multi-levels sensitivityImages show1 or 4 channels showRecord speedPAL:25fps(adjustable) , NTSC:30fps(adjustable)Video storageHard Disk,NetworkMobile viewingstandard RTSP 3G ...