1. Material: Metal2. According to the transfer rate: 25 MB/s3. Reading speed: 25 MB/s (MAX)4. Writing speed: 15 MB/s (MAX)5. Interface: USB 2.06. Write protection switch: support7. 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. Quadruple safety protection, durable14. Metal shell, resistant to pressure and drop15. Product size: 4.6 x 1.2 cm16. Weight: about 8 grams

http://olla.gr/it02-high-speed-usb-2.0-chain-buckle-metal-usb-flash-drives-capacity-64gb-white/