200Pcs RFID Cards - 125Khz EM4100 TK4100 Contactless Proximity Smart

Chip Type: EM4100 / TK4100 Compatible. Integrate with Reader: Ensure your RFID reader is compatible with 125kHz EM4100 or TK4100 cards. 125kHz Frequency: Operates on the widely used 125kHz frequency, ensuring compatibility with most standard RFID readers.

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