Using the latest biometric technology, this enclosure is an all new 2.5-inch portable SATA HDD enclosure solely designed to secure your data with its biometric locking system. Data encryption prevents accidental or corrupt leakage. When you want to encrypt individual files or folders on the hard drive, you only need to double-click a certain file or folder, a dialog box will be automatically pop-up and prompts for authorized fingerprints. Computer passwords provide a measure of security only as long as they aren't lost, stolen, forgotten, or hacked. Restricting a PC to one or more authorized users strengthens security, and by using this enclosure, the users only need to do the enrollment at the beginning. Using the save feature of Fingerprint Disk, the activity of sending/receiving mails all takes place in the disk.