ARCANITE 256GB USB 3. 1 Flash Drive - AK58256G Interface : Super speed USB 3. 1 GEN 1 Type-A Connector (backwards compatible with USB 3. 0, 2. 0 & 1. 1) Specification : Made in Taiwan, dustproof, shockproof, temperature resistant / Size : 2. 23 × 0. 71 × 0. 35 in Plug & play : Use on the go with Read Speeds up to 400mb/s, Write Speeds up to 100mb/s. Actual transfer speeds will depend on operation environment, computer equipment and other factors Recommended Use : Storing documents, pictures, videos System Compatibility : Devices with USB Type-A Connector. Windows 10 / 8 / 7 Vista, etc. Mac OS 10. X and later