Storage Capacity: 5 TBEncryption Standard: 256-bitHost Interface: eSATA, USB 3.0, FireWire/i.LINK 800Drive Type: ExternalForm Factor: DesktopHeight: 1"Width: 5.4"Depth: 9.3"Weight (Approximate): 2.50 lbPackage Contents: CipherShield Penta Interface AES Encrypted External Drive For PC, 2 Cipherkeys, USB 3.0 cable, FireWire 400 cable, FireWire 800 cable, eSATA cable, Power adapter, User manual, Device Supported: Desktop PCLimited Warranty: 1 YearIntroducing the latest and greatest of our CipherShield Hardware Key Encrypted External Hard Drive, the Penta Interface Drive. With 5 different connection types at your disposal, compatibility and speed of data transfer is no longer an issue. USB 3.0, check. USB 2.0, check. FireWire 400 and 800, check, check. And finally, who can forget eSATA, check that too. CipherShield design features a chip embedded in the access key which matches the AES encryption module on the controller board. The drive will automatically lock down its content once the key is unplugged, or power is shut off. And without the access key, data will not be seen or accessed in the event of theft or loss of the external drive. Data stored on the hard drive are safeguarded by hardware-based National Institute of Standards and Technology (NIST) certified industrial strength AES (Advanced Encryption standard) cryptographic engine. The advantage of hardware encryption over software encryption is that you need not be concerned about Trojans/viruses or software upgrades, which results in a decrease of total cost of ownership. Since CipherShield encrypts data independent of the operating system; removing the drive and connecting it directly to the SATA BUS will not defeat the encryption. Unit is bundled with two keys and registration is required for key duplication.