Colour-code your RFID projects with this 5-pack of UID-changeable keyfob tags in assorted colours (Blue, Yellow, Green, Red, Purple — colours may vary). Each tag works at 13.56MHz and is fully compatible with Mifare and Fudan cards, making them ideal for multi-user access systems, interactive wearables, game pieces, or rainbow-coded prototypes.
The UID-changeable chip means you can copy the ID of an existing Mifare or Fudan card, and write custom data to sectors — great for testing and prototyping without hunting for blank cards.
