Transfer 4GB data to the drive in less than 15 seconds. The SanDisk Extreme Pro USB 3.1 Flash drive offers an enormously high solid-state performance in the design of a USB flash drive. This flash drive sets new standards in the USB storage category and ensures reading speeds of up to 420MB/s and writing speeds of up to 380MB/S1, so that you can transmit your data quickly. Huge files can also be easily managed by capacities of up to 256GB*. The modern aluminum housing is elegant and at the same time robust, while the scope of delivery included with 128-bit encryption and password protection ensures that your private files also remain private4. In addition, the SanDisk Extreme Pro USB 3.1 Solid State Flash drive offers a limited lifelong guarantee for additional protection.