ISO CR-80 (85.6 x 54 x 0.76 mm) proximity smart card 13.56 MHz (NFC Type Tag 4) without contact chip. DESFire™ 640 byte memory with EAL4 tier AES or LPR encryption. 7-byte UID (ISO Cascade Level 2). Made of PVC. White, without screen printing. Minimum order: 2,000 units (in packages of 2,000 units).