USB Specification: USB 2.0 Features: Compact and portable with a flip-top design Safely carry your data on a keychain Store, transfer, and share your videos, music, photos, and other files Encrypt your private files with SanDisk SecureAccess software Added protection of secure online backup (up to 2 GB optionally available) offered by YuuWaa Registration required. Terms and conditions apply. Password protection uses 128-bit AES encryption and is supported by Windows XP, Vista, 7, and Mac OS X v10.5+ (Software download required for Mac, see www.SanDisk.com/SecureAccess)