EM4100 125kHz Read-Only RFID Cards, Pack of 5

This pack of five 125kHz RFID cards operates on the standard EM4100 read-only protocol for wireless identification. They are ideal for students, makers, and educators building access control, tracking, or automation prototypes. The cards easily interface with standard 125kHz reader hardware for microcontrollers.

Contactless identification

Each card uses the standard 125kHz EM4100 read-only protocol to provide reliable wireless identification for your electronics projects.

Module compatibility

These cards are fully compatible with 125kHz EM4100 RFID reader modules, including the RDM630 UART output Arduino shield.

What is included

This pack includes five individual 125kHz EM4100 read-only RFID cards.