Optimized for safeguarding essential data while on-the-go the ThinkPad USB 3.0 500GB (1) Secure Hard Drive offers high-level 256-bit Advanced Encryption Standard (AES) security within a slim lightweight self-powered easy-to-use design.- Connectivity via either USB 2.0 or USB 3.0 interface- Compact size- No requirement for an AC power adapter- Driverless operation under Microsoft Windows 7 Vista and XP.- All stored data is fully encrypted using the AES 256-bit security encryption algorithm- Real-time encryption with no read/write speed impact- Shock-mounted 500 GB or 750 GB 5400 rpm hard drive capacity- Built-in USB 3.0 cable with an integral storage slot- Integrated high quality metal dome switch keypad for entering an 8 to 16 digit password for 1 user ID and 1 administrator ID- USB Y extension cable to ensure adequate power- Attractive protective carrying case- Non-skid anti-vibration pads- High quality ThinkPad soft touch paint- Multi-colored LED device status indicator- Easy and secure storage expansion- No software installation required- Built-in administrative password managment- Simple file backup