... .2,system resources: 1or 4-channel CIF real-time video and 1 or 4-channel CIF playback sub-stream.3,operation ... control.4,video compression: MJTEG.5,Record modes: Manually, timing, motion detection.6,Backup modes: USB backup, One SATA hard disk ... ,video output: 1-channel BNC.9,Alarm output: Video lost and motion detection.10,hard disk interface: 1 SATA interface.11,USB ...