With a software free design, secure PIN access, real-time 256-bit AES encryption and sporting a dual eSATA & USB interface; the ultra-fast 750GB Aegis Padlock Pro is the ideal drive for those that require the ultimate in security and speed. Need to secure your data on the go? The Aegis Padlock Pro fuses hardware data protection with a speedy eSATA and USB connection. The Aegis Padlock Pro enables you to access the drive with your own unique pin and secures the data with Military Grade 256-Bit AES Encryption.Ultra-fast eSATA and USB interface - provide data transfer rates of up to 90MB/sec The Aegis Padlock Pro uses a three pronged approach to protect against a Brute Force attack. The first step is to deny access to the drive until the drive can verify the user PIN. After several incorrect attempts the drive will lock itself, requiring the drive to be plugged in again to input a PIN. This feature blocks automated attempts to enter PIN numbers. Lastly, after a predetermined number of failed PIN entries, the Padlock Pro assumes it is being attacked and will destroy the encryption key and lock itself permanently.