Transfer 4K movies and large image files in seconds with the SanDisk 128GB Extreme Go USB 3.1 Flash Drive. You can use the flash drive with devices having a USB 3.1 Gen-2 interface. The flash drive is also backward compatible with USB 3.0 and 2.0 systems. This SanDisk flash drive has a maximum reading and writing speed of 200 Mbps and 150 Mbps respectively. With the included SecureAccess software, you can protect private files by applying a 128-bit AES encrypted password. The RescuePRO Deluxe got your files covered if they are accidentally deleted. You can slide the USB connector inside to prevent it from getting damaged.