Features: High-speed USB3.1 Gen2 interface, the write speed up to 420MB/s, plug and play, easy to transfer pictures, files, videos, etc. Type-C interface, no need to distinguish between positive and negative sides, convenient to use, easily expand the capacity of device. Compatible with Type-C interface devices, TV, vehicle-mounted, music player and other USB devices. 360 rotating design, better protects data interface. Zinc alloy material, delicate feel, wear-resistant and shockproof, stable and durable. Specification: Model: TSU301 Capacity: 128GB/256GB(optional) Material: Zinc alloy Interface: Type-C 3.1/USB3.1 Supported system: WindowsXP/7/8/10, Linux2.4.X, Mac OS 9.X and above Item size: 6.4 * 1.55 * 0.93cm /2.52 * 0.61 * 0.37in Item weight: Approx. 22g /0.78oz Packing list: 1 * U disk