ZHP250 USB 2.0 Keychain Waterproof USB Flash Drive, Capacity:4GB(Silver)

1. Material: zinc alloy2. According to the transfer rate: 24 MB/s3. Reading speed: 20 MB/s (MAX)4. Writing speed: 8 MB/s (MAX)5. Interface: USB 2.06. Write protection switch: not supported7. Indicator light: none8. Storage temperature: minus 50-85 degrees Celsius9. Operating temperature: minus 25-85 degrees Celsius10. Using high-performance solid-state chips, long service life, data security11. Small size, no space, easy to carry12. The surface is frosted and has a good smooth feel13. Product size: 4.85 x 1.2 cm14. Weight: about 8 grams