Military Grade, waterproof, tamper-resistant, and best of all….included self-destruct mechanism. If someone tries to break the IronKey USB Drive, the actual hardware changes so all access is terminated, permanently. You can surf the web privately, run independent applications, movies, backup passwords etc. all from a very secure private drive. And it runs USB 2.0. Never worry about privacy again, on any computer. The 4GB runs $140.