With AES 256-bit hardware encryption, Yuantech UDisk keypad encrypted Hard Drive can perfectly protect your confidential or sensitive information. Access the encrypted Hard Drive only when you input the correct password by integrated numeric keypad, that means it can prevent any hardware and software login attempts to hack your flash drive. Even if ¡°Chip off¡±. Support 6-32bit digital password that means it can prevent attempts hack your device by ¡°brute force¡±. The USB3.0 interface make the data transfer rate up to 5.0Gbps which is 10 time higher than 2.0 port ((USB 1.1 compatible). And DO NOT need any software or drives to be installed, Support Windows, MAC OS X, Linux, even android system., Very small size for easy put in pocket to travel.