This RAID hard drive supports USB 3.0 interface. RAID 0 striping with 2x 2.5" gives larger capacity with lighter weight and lower power consumption than our 3.5" base RAID. It is possible to use power from the USB port without using the power adapter. Using metal alloy case, heat is easily dissipated and with less plastic used, more recyclable and eco friendly too. CipherShield dual keys encrypted external hard drive safeguards and protects classified information when they are too important to be left in the hand of one individual. To gain access to the drive, authentication will be based on two unique Cipherkeys. It requires both keys to be plugged in all the time while working with the drive. It is like getting a safe deposit box that takes two keys to open. It is suitable for group setting where more than one individual are working on highly confidential projects. i.e. blueprints for company''s next new products, top secret programs, highly confidential legal cases, sensitive customer records and financial information. 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. You do not need to remember complicated password or PIN. 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 four keys and registration is required for key duplication. Feature Provides maximum protection with access requirement of two keys Bundled with two sets of unique Cipherkeys - a total of 4 keys RAID 0 striping for faster transfer 2 x 2.5" drive inside for lower power and lighter weight USB-powered; power adapter optional eSATA also powered by USB cable NIST FIPS 140-2 Level 2 compliant AES hardware encryption with 256-bit encryption Conforms to HIPAA regulation regarding patient privacy and to Sarbanes-Oxley regarding corporate financial and accounting practice CipherShield Smart Insert technology with Cipherkey to authenticate the drive, no complicated password or PIN to remember FDE (Full Disk Encryption) encrypt whole drive Real time "on-the-fly" encryption without any performance degradation Faster, easier to use, and provide a better security than software encryption Operates independently to the OS: does not require separate drivers Encryption key is on the removable hardware key; can be removed and stored away to prevent unauthorized access Plug and play; no complicated installation