Specifications include, but are not limited to: In general, the ConnectCard media shall: 3.2.1 Be a Mifare Classic 1K type smart card, and shall be Mifare compliant, equipped with the “MF1 IC S50” NXP-Chip. 3.2.2 Comply with ISO/IEC 14443-1 for Physical Characteristics and ISO/IEC 7810-ID1 size for all dimensions. 3.2.3 Comply with ISO/IEC 14443-2 and ISO/IEC 14443-3. 3.2.4 Be constructed of laminated layers, with PVC outer surfaces, or approved equal to accommodate printing and a central layer of Polyester (PET) plastic. 3.2.5 When pre-printed with PAAC-specified graphics, include a thin clear plastic layer laminated to the card. 3.2.6 Comply with most recent versions of ISO/IEC-10373 and ANSI INCITS 322 for durability. 3.2.7 Have a unique 16-digit (4-byte) unalterable serial number pre-encoded on the embedded chip. 3.2.8 Be capable of repeated daily use over a minimum expected useful life of three years.