At ID Card Group, we offer high-quality MIFARE® DESFire® 4K NXP EV2 that contain genuine NXP EV2 chips. These chips have a 4K byte EEPROM memory capacity that allows them to hold multiple applications. Our NXP MIFARE cards operate at 13.56 MHz with data processing speeds up to 848 Kbits/s. These cards are the advanced version of the MIFARE® DESFire® 4K EV1 cards.