Backup

An abbreviation for Speed Dome, could also mean Standard Definition depending on who you ask and in what context.

Also known as Hard Disk Drive, it is a device that would store files like documents or in our case video recorded files as a digital file.

Internal error - DahuaWiki

Backup

An abbreviation for Speed Dome, could also mean Standard Definition depending on who you ask and in what context.

Also known as Hard Disk Drive, it is a device that would store files like documents or in our case video recorded files as a digital file.