... card chip,NXP inlay,TK4100 inlay,EM4100 inlay proximity inlay,rfid inlay,contactless card chip,NXP inlay,TK4100 inlay,EM4100 inlayKey ... unique/EM marin is very mature, simple and widely used RFID technology. The chip we embed in the card is original ... have a unique seiral number. It is great solution for.access control, time attendance system which do not require very high ...