... professional manufacture RFID keyfobs,125khz tag,key chainSmart cards/chip cards, these cards are plastic cards that contain ... operations independently. Smart cards which contain a memory chip that can store vast amount of personal data. ... SLE4442, SLE4428, SLE5542, SLE5528, SIEMENS chip and Chinese chip both availableContactless IC card: Contactless IC cardIC available at 125KHz nominal:TK4100, ...