... , PET 2012 China ISO 7816 Smart Memory Card SLE4442/SLE5542 card is one of the mostly used contact memory card in security area, use as ... hotel key card, pre-payment etc. SLE4442/SLE5542 is ... smart card, contactless cards, and various passive RFID products like keyfob, wristband ,key tags, coin and disk tags, and metal tags with ...