DETAILS: Buslink Cipher shield Hardware Encrypted 192 Bit Key External Hard Drive Pre-Formatted, metal alloy, heat dissipating case. Buslink introduces USB Hi-Speed External Hard Drive w/ Cipher Shield-security Key. Cipher Shield prevents unauthorized access to the hard drive. This unique anti-theft design allows you to protect your data. Cipher Shield protects your hard drive data through a chip on the circuit board, embedded with a unique code. Access to the hard drive is only available with the matching security key. Cipher Shield drives feature a Hi-Speed USB 2.0 interface for use with any PC. Product Description: BUSlink CipherShield CSD-750-U2 - hard drive - 750 GB - Hi-Speed USB Type: Hard drive - external Capacity: 750 GB Interface Type: Hi-Speed USB Data Transfer Rate: 480 Mbps UPC: 0677891124162