Samsung S1 Mini 120 GB USB 2.0 1.8-Inch Portable External Hard Drive HXSU012BA/M22 (PianoBlack) Samsung auto backup: Files are automaitically backed up on the S-Series either in real-time or as scheduled SecretZone is a drive function that provides encryption of personal files and folders for data security. Safety Key: You can protect your personal content simply by setting a password as part of Samsung's auto backup function. The feature allows you to see at a glance how much space is available Power-saving mode: This function saves power by automatically going into standby after five minutes of inactivity.