The TK4100​ is a low-frequency (LF) 125 kHz read-only RFID chip, widely used as a low-cost alternative to the EM4100/EM4200 family. It is primarily designed for simple identification tasks in access control and as..

The TK4100​ is a low-frequency (LF) 125 kHz read-only RFID chip, widely used as a low-cost alternative to the EM4100/EM4200 family. It is primarily designed for simple identification tasks in access control..