1. Advantages: 100% full capacity: our products with excellent quality and performance, through full testing and certification Using only major brand flash chip material IC Waterproof and dustproof and chockproof 2. Capacities: 128MB, 256MB, 512MB, 1GB, 2GB, 4GB, 8GB, 16GB, 32GB, 64GB & 128GB 3. Data retention: 10 years 4. More than 1,000,000 times data encryption 5. USB interface: USB 2.0 (also compatible with USB 1.1 and 1.0) USB 3.0 (follow customer request to made) 6. Logo ways: silkscreen printing, laser engraved logo and more 7. OS system: Windows 7, Windows XP, Vista, Windows 2000, Linux Kernel 2.6.x or late, Mac OS 10.x or later 8. Voltage communication range: 4.5~5.5V 9. With CE, RoHS & FCC certificates 10. Our mission for customers: provide accurate and timely market information, high-quality products, competitive pricing and value-added services resulting in a "win-win" outcome for all parties.