The ZKTeco C3-400 is an advanced IP-based door access control panel that utilizes RFID proximity technology to provide real-time access control management and monitoring. Key features of the C3-400 include: - Support for up to 30,000 badge users, offering scalability for businesses of various sizes. - Storage capacity for up to 100,000 events, enabling comprehensive event tracking and auditing. - Part of the C3 series, providing a comprehensive access control solution for small, medium, and large enterprises. - Enhanced security and efficiency in access management, contributing to a safer and more controlled environment. The C3-400 is designed to meet the demanding access control needs of businesses, offering advanced features and reliable performance.