Interface Type: USB 2.0Specification:1. USB connection,support Hot plug & Play.2. No external power supply .3. Support different types of os.4. Solid State Storage, Shock proof and electromagnetic proof.5. Material: Metal6. Durable data storage7. Fast speed in write/read transfer8. Hardware Requirement: Notebook,MAC9. Life: more than 1 million times10.Capacity:8GB 32GB 64GB 128GB