The MIFARE DESFire EV1 4K​ (NXP model MF3ICD41) is a high-security, multi-application contactless smart card IC​ operating at 13.56 MHz. It is part of NXP's premium DESFire family, designed for applications requir..

The MIFARE DESFire EV1 4K​(NXP model MF3ICD41) is a high-security, multi-application contactless smart card IC​ operating at 13.56 MHz. It is part of NXP's premium DESFire family, designed for applicat..