Zkteco K40 Biometric Fingerprint & Access Control Battery Support

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ZKTeco K40 Biometric Fingerprint Time Attendance & Access Control Device ZKTeco K40 is a 2.8-inch TFT screen, fingerprint-based time attendance and simple access control terminal with a built-in battery for power outages. It manages attendance using TCP/IP and USB host for easy data management. It supports 2,000 to 3,000 fingerprints (depending on model variant), 100,000 records, and optional ID/IC cards, making it ideal for small office attendance.