Built with a durable anti-shock rubber case, the black 1tb usb 3.0/3.1 external hard drive from transcend combines a 1tb storage capacity with a usb 3.0/3.1 interface, 256-bit aes file encryption, and military-grade shock resistance. the internal 2.5" hard drive receives further protection from a suspension system, while a one-touch auto-backup button helps to create a second copy of your data and a quick reconnect button re-enables the removed hard drive without needing to remove and reinsert the usb cable.