In backup, perform a contract with USB (Flashdrive), USB (Hardisk-External), USBNN2 (Front) and 2 1xE-SATA xport port (rear). For each backup, the backup will NVR, with บัทึกภาพ going at the same time.
To back up Has promised to use. USB (Flashdrive), USB (Hardisk-External) by 2xport USB2.0 (Front) and 1xE-SATA port (rear). To back up each time. NVR to perform a backup and unused files in the same time.
Backup data, there are channels for use with USB (Flashdrive), USB (Hardisk-External) by 2xport USB2.0 (Front) and 1xE-SATA port. (after). In backup each time. NVR will backup the record pictures at the same time .