The 2tb istorage diskashur 256bit external hard drive offers secure access and protection for your files with its 6 16 digit pin personal identification number system the military grade secure hard drive works across all operating systems and utilises super fast usb 30 it offers 256 bit hardware encryption which encrypts all data stored on the drive in real time meaning that the data on the drive cannot be accessed by any unauthorised third party if it is lost or stolen in addition