Features:1. Using the AES265 encryption algorithm,provide the deepest protection for your information security.2. Your personal secret senior housekeeper.Unique background central management system, hommization settings and check, management authority.3. Fingerprint verification,fast response, sensitive,simplify matters,free from worry.4. Plug and play, support hot-plugging.5. Shine Sliver,create an air of metallic texture.6. Anti-Scratch and Abrasion Proof,Quality assurance.7. Strong compatibility, plug and play.8. One year quality assurance,National joint guarantee.