The ZKTeco CR20M is a high-performance USB proximity card reader designed for fast, reliable identification and seamless integration with access control and time attendance systems. It features a compact, durable build with plug-and-play USB connectivity, making setup simple without the need for drivers. With dual-color LED indicators and audio beep feedback, the CR20M ensures clear and intuitive user interaction. Its support for 13.56 MHz frequency and broad compatibility with major operating systems make it ideal for office environments, security checkpoints, and enterprise applications requiring efficient card reading.