|Tough on the outside, FIPS validated HDD encryption on the inside, and pocket-sized portability to safely carry your data anywhere you go. Available in a wide variety of storage capacities in both HDD and high speed SSD models. The Aegis Fortress is Software-Free, 100% hardware-based 256-bit AES XTS encrypted, onboard keypad PIN authenticated, with ultra-fast USB 3.1 (3.0) data transfer speeds. All Data is encrypted on the fly and all PINs and Data remain encrypted while the drive is at rest. Completely cross-platform compatible and OS agnostic; the Aegis Fortress thrives with Windows, Linux, Mac, Android, and Chrome. It also thrives where software-authenticated encrypted devices can't function, such as embedded systems and equipment in possession of a powered USB port and storage file system but no keyboard. All internal componentry is protected from physical tampering with a layer of hardened epoxy, and the firmware is locked down to prevent any modifications making it impervious to malware attacks such as BadUSB.