In the contract box can be used to backup-USB (Flashdrive), USB (Hardisk-External), USBNN2 (Front) and 2 1xE-SATA xport port (rear). For each backup, the backup will NVR with บัทึกภาพ in the same period already exists.
To back up Available Channels 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 at the same time to me.
Backup data can be used to channel USB (Flashdrive), USB (Hardisk-External) by 2xport USB2.0 (Front) and 1xE-SATA port (background).? Backup data each time. NVR will backup the record images at the same time anyway .