The SLE5542 Card is upgraded version of SLE4442. SLE5542 card is one of the mostly used contact memory card in security area, use as hotel key card, pre-payment etc. SLE5542 is original from Infneon. About the IC module: -Intelligent 256-Byte EEPROM -Write Protection function on unique manufacturer code to identifcation of application. -Programmable Security Code -EEPROM Endurance minimum 100, 000 erase / write cycles -Minimum of 10 years data storage time -Contact confguration and serial interface in accordance to ISO standard 7816 Key Feature of SLE5542 Card: Dimensions: CR80 85.60 x 53.98mm Thickness: 0.84mm Material: PVC, PET Card Surface: Matte/ gloss fnish Housing: Lamination Operating Temperature: -20 to +60'C Stockage Temperature: -20 to +65'C Printing Option: Full color offset printing Silk-screen printing Silver/Gold silk-screen printing background Options on standard card: Magnetic Stripe Option: 300oe, 2750oe, 4000oe Numbering Barcode printing Signature panel Embossing Encoding: Available according agreement.