Size:256GB The Flash Voyager GTX USB 3.1 premium flash drive puts SSD performance in your pocket, with up to 440MB/sec read and 440MB/sec write speeds. Encased in a solid zinc alloy housing, and available in 128GB, 256GB, 512GB and massive 1TB capacities, you can load up all your data and access it in speed and style. Fully compatible with high-speed USB 3.1 Gen 1, USB 3.0 and legacy USB 2.0 connections, the Flash Voyager GTX USB 3.1 is both future-proof and backwards compatible, connecting to any Windows, OSX or Linux operating system without the need for drivers or installs.