A compact security authentication device that protects login and data with multiple verification methods. Multifactor protection: PKI, PIN, and fingerprint verification provide strong login security, enable data encryption and decryption, and support digital signatures. Broad compatibility: Works with Windows, macOS, and Linux; supports common card standards; enables secure authentication and verification across work, home, and mixed environments. Fast data exchange: Reads and writes data quickly across diverse card formats via a speed USB interface; facilitates smooth transfer of information. Easy to use: Plug in, insert the card, and use the simple oneclick interface; no complex settings required; fast, reliable authentication. Durable and compact: Small form factor with robust construction suitable for desktop use or portable deployment. Use cases: Employee workstation login and VPN access in corporate settings. Secure email signing and document encryption at home or on the go. Classrooms or labs requiring secure access control and rapid card data transfer.