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One Shop Supplier--RFID,NFC,UHF Products and IOT Solutions
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RFID NFC Smart Card / RFID radio frequency identification card
TK4100 is EM compatible chip, it is very mature, simple and widely used RFID technology.
Each of the proximity card has a UID. It is great solution for access control, time attendance which do not require very high security level.
Door access control RFID NFC Smart Card
A Radio-Frequency Identification system has three parts:
The security of your employees, facilities, networks and critical assets depends on advanced multi-application access control cards that can perform a wide range of tasks.
From traditional fobs to contactless smart cards such as RFID, contact and contactless (13.56 MHz) smart cards, dual interface cards, proximity cards (125 kHz), utra high frequency smart card (860~960MHz).
RFID smart cards enable information to be stored on the chip, which can be used for identification and verification.
here is the data of two chips: