The drive supports hardware-based 256-bit AES encryption. All data saved to the drive in encrypted, even if the hard drive mechanism is removed from the Aegis Padlock Pro case. The Aegis Padlock Pro also has support for personal identification number (PIN) access; you must enter a PIN before you can use the drive.
The Aegis Padlock Pro comes with a USB 2.0 port and an eSATA port. The drive can use bus power via USB, if the USB port on your Mac provides enough power. If you want to use eSATA, Apricorn includes a USB power cable, so you can draw power from the USB port while benefiting from the data transfer speeds of eSATA. A power adapter is also included.
The Aegis Padlock Pro is available with a hard disk drive mechanism or a solid-state drive (SSD). The hard drive versions are available in 250GB ($129), 500GB ($169), or 640GB ($199) capacities. The SDD version is available in 128GB ($419) and 256GB ($799) capacities. All drives have a three-year warranty.