AutoRun feature
The AutoRun feature lets you run backup
sets automatically when a new drive is connected to the computer.
This is a very powerful feature with many applications, but is mainly
intended to enable you to backup to USB drives (and other removable
drives) automatically. You need not run the backup manually, instead
the NH Backup Agent will start the
backup set directly when the drive is connected.
The AutoRun event can be triggered by the
connection of any device that creates a new drive letter in the
Windows Explorer. This excludes CDs and DVDs, since they don't create a new
drive letter, but rather utilizes the existing drive letter of the CD or DVD
drive.
Learn more about creating a AutoRun enabled
backup set by reading the AutoRun guide.

Product pictures from SanDisk.