Sunix key-256UN1 - iSafe USB 2.0 SecureKey ( Usb+Nfc ) - AES 256-bit data encryption with cloud encrypted folder synchronization, encrypted data sharing, encrypted partition creating, computer locker ; Support cloud encrypted archives auto-synchronizing with Dropbox, Google Drive, Box, and SkyDrive - for windows based PC via USB or mobile with NFC ; IP67 dust and water resistant certification - 2x keys included ( but ONLY )