1. Standard port: USB 2.0 or USB 3.0, compatible with USB 1.1 and USB 1.1 2. Gold plating for USB pins 3. Material: ABS+metal 4. Colors: please refer to photos for standard color, other color need to verify with us 5. Capacity: 512MB-128GB, 100% true capacity 6. Memory brand: Samsung, Toshiba and SanDisk, or as per your request 7. Data Retention: at least 5 years 8. Password protection and optional auto-run function 9. Plug-and-Play function, no need of any extra power supply 10. Operating Temperature: 14 to 131 ℉ (or -10 to 55 ℃) 11. Storage temperature: -4 to 131 ℉ (or -20 to 55 ℃) 12. Writing speed: 4.5MB/s for USB 2.0, 10MB/s for USB 3.0 13. Reading speed: 10MB/s for USB 2.0, 35MB/s for USB 3.0 14. Operating Humidity: 20% -90% 15. Storage Humidity: 20% -93% 16. Logo printing is welcomed 17. Various packing is available, from white box, black box, aluminum box, to window box, or as per your request 18. RoHS compliance