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These Blue MIFARE Classic® EV1 4K Key Fobs are built around genuine NXP Semiconductors chips — the kind of component specification that matters when you're deploying access control across a site and can't afford inconsistent reads. Operating at 13.56 MHz with 4KB of EEPROM memory, they're suited to installations where staff or visitors need credential-bearing fobs rather than cards.
The passive, battery-free design means there's nothing to charge, nothing to replace, and no theoretical limit on the number of reads — which keeps ongoing maintenance simple for facilities and IT teams alike. Supplied in packs of 100, they're a practical choice for initial deployments or topping up an existing MIFARE-based system.
Compatible with standard 13.56 MHz RFID readers and widely used across access control infrastructure throughout Ireland and Europe. Each fob carries the EV1 generation specification, meaning enhanced security features over earlier MIFARE Classic variants.
Whether you're managing who gets through a door or who gets into an event, these fobs handle both without complaint. The kind of credential that works quietly in the background — reliable across access control systems and event entry points alike, with 4K of memory that gives you room to do more than the basics.
