The size of these files can be determined when they are created, which limits the card's flexibility and offers users more control over the size of the files and the number of applications compared to previous models. MIFARE DESFire EV1 can hold up to 28 different applications and 32 files per application. What is the difference between the EV1 smart card and the EV2? Application limits The DESFire family of cards are both convenient and flexible, offering reliability and security as well as increased transfer rates and consumer-friendly design. MIFARE DESFire cards are also fully Near Field Communication (NFC) compatible and contain mutual three pass authentication with a backup management system built into each chip. The cards have been created based on global standards and function as a scalable, contactless solution for a multitude of applications, such as access, identity, loyalty, transportation and closed-loop micropayments for system operators and solution developers. The chips of these innovative cards contain a full microprocessor with robust security features and are designed to work with multiple manufacturers and systems. MIFARE DESFire is a family of smart cards consisting of the EV1 and the EV2 chip. EV2 - What’s the difference and why upgrade?
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