Multi-Card Compatibility - Supports contact smart cards such as CAC, DNI, IC, ATM, SIM and tax filing cards, making it suitable for identity verification, online services, and secure login use. USB 2.0 Connection - Stable wired USB connection provides reliable data transfer for daily card reading tasks without the need for batteries or charging. Ideal for Tax Filing and eID Use - Designed for tax control systems, government portals, digital certificates, online banking, and other smart card authentication applications. Compact and Portable Design - Lightweight card reader is easy to carry and store, ideal for home office, business, finance, accounting, and personal identity verification use. System Compatibility - Works with many Windows, Mac, and Linux computers; some cards or websites may require additional drivers, certificates, or middleware software.