2.5" & 3.5" mDOCK KEYPAD SECURE Mandatory encryption for your 2.5" or 3.5" internal HDDs Secure docking station with 256-bit AES Hardware Encryption for 2.5" or 3.5" internal SATA hard drives. The built-in keypad allows users to set PIN codes to access the encrypted data saved on the hard drive to keep it safe and secure. View details