RFID USB reader and writer, model GMAX GM-08N-MF-14443A. The device is designed for programming and administering cards within access control systems. Operating at a 13.56MHz frequency, it features both reading and writing capabilities for ISO 14443A (Mifare) standard RFID cards and key fobs. The device connects to a computer via a standard USB interface, ensuring quick and easy management of user data within the system.