All Readers (EM4200) Transponders Readers (Mifare) Keyboard Emulators Controllers (EM4200) EM4200 No LED EM4200 LED with common Anode EM4200 LED with common Cathode Mifare LED with common Anode Mifare LED with common Cathode Controllers Timed Output Transponder EM4102/4200 Transponder Mifare RFID Keyboard 125 RFID Keyboard 13.56 1-wire® Adaptor 1-Wire RFID Readers