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EM4100 Cards

EM4100 cards are contactless RFID cards operating in LF at 125 kHz. They have read-only memory and a unique identifier (UID).

EM4100 read-only cards are widely used for access control and identification at hotels and hospitality facilities, companies, schools and universities.

Available in different materials — PVC, PETG, wood — they come in the following sizes: 86 mm x 54 mm x 0.86 mm for PVC and PETG, 86 mm x 54 mm x 1.3 mm for wood.


RFID Chip EM4100

Chip frequency 125 kHz


UID 8 bytes

Manufacturer EM Microelectronics