Zsumi1 USB2.0 High Speed Mini Metal U Disk, Capacity:4GB(Gun Color)

1. Material: Metal 2. According to the transfer rate: 20 MB/s 3. Reading speed: 24 MB/s (MAX) 4. Writing speed: 10 MB/s (MAX) 5. Interface: USB 2.0 6. Write protection switch: not supported 7. Indicator light: none 8. Storage temperature: minus 50-85 degrees Celsius 9. Operating temperature: minus 25-85 degrees Celsius 10. Using high-performance solid-state chips, long service life, data security 11. Small size, no space, easy to carry 12. The surface is frosted and has a good smooth feel 13. Four kinds of safety protection, sturdy and durable 14. Metal shell, resistant to pressure and drop 15. Product size: 1.5 x 1.1 cm 16. Weight: about 5 grams