The Crypteks USB™ is one of the first (the first as far as we know!) physically locking USB storage devices to feature 256-bit AES Hardware Encryption. It's also really small! Measuring approx 3.1" x 1.1". We worked really hard to bring together inspiring features from top-tier consumer products and rolled them into a single product that is both stylish and extremely functional. A lot of emphasis was given to using the best quality materials possible as well as a really fine attention to detail with respect to construction, laser etching, and general assembly. The Crypteks USB™ was designed to make a bold yet elegant statement and to absolutely-hands-down guarantee your personal information is always personal.