High Security Level Desfire EV1 2K RFID Blank Card is based on 13.56mhz rfid  technology and a Common Criteria (EAL4+) certified rfid card, is ideal for service providers wanting to use secure multi-application smart cards in public transport schemes, access management or closed-loop e-payment applications. It is fully complies with the requirements for fast and highly secure data transmission, flexible memory organization and interoperability with existing infrastructure.Featuring an on-chip backup management system and the mutual three-pass authentication, a Desfire EV1 card can hold up to 28 different applications and 32 files per application. The size of each file is defined at the moment of its creation, making Desfire EV1 a truly flexible and convenient product.Additionally, an automatic anti-tear mechanism is available for all file types, which guarantees transaction-oriented data integrity. With MIFARE DESFire EV1, data transfer rates up to 848 kbit/s can be achieved, allowing fast data transmission. For meeting more and more high security requests in finance , cashless payment ,etc . Desfire EV1 chip rfid cards most popular in customers and make more protection for our imporatance data nowadays .