Optimized for safeguarding essential data while on the go, the Lenovo ThinkPad USB Portable Secure Hard Drive offers advanced security within a slim, easy-to-use design. An ideal companion to the ThinkPad brand of notebook PCs, the minimalist, elegantly shaped device in 250 and 350 GB capacities uses an intuitive numeric keypad to invoke a 128-bit Advanced Encryption Standard (AES) security system. The sturdy soft-touch housing cleverly stores the USB cable when not in use and slips neatly into a form-fitting case for increased protection while traveling.