ISO CR-80 (85.6 x 54 x 0.76 mm) 13.56 MHz proximity smart card without contact chip (NFC Tag Type 4). DESFire™ EV3 4 KByte memory with DES / 2K3DES / 3K3DES / AES encryption. 7-byte random UID. EAL5 + certificate. SUN message authentication for advanced data protection. Transaction timer to mitigate man-in-the-middle attacks. Perfect integration of mobile services in combination with MIFARE 2GO. Made of PVC. White, without screen printing. Minimum order: 2,000 units (in packages of 2,000 units).