... ,TK4100 inlay,EM4100 inlay proximity inlay,rfid inlay,contactless card chip,NXP inlay,TK4100 inlay,EM4100 inlayKey Feature of We can ... is very mature, simple and widely used RFID technology. The chip we embed in the card is original from EM Microelectronic ... of the EM marin proximity card have a unique seiral number. It is great solution for.access control, time attendance system ...