Adafruit 13.56MHz RFID/NFC Sticker - NTAG213 Tag

This blank 13.56MHz RFID/NFC Sticker with an NTAG213 chip is perfect for seamless integration into systems requiring proximity cards, commonly used in train/bus passes, information sharing, and contactless payments. It's a versatile solution for any environment where quick, hassle-free data transfer is needed.

The tag features a small RFID chip and antenna, passively powered by the reader/writer when positioned within a few inches. It's compatible with virtually any 13.56MHz RFID/NFC reader, as long as it supports ISO/IEC 14443 Type A cards, providing consistent performance without the risk of compatibility issues associated with different encoding standards.

The NTAG213 chip allows for up to 10,000 re-writes, boasting a writable EEPROM that stores up to 144 bytes of data divided into 4-byte banks. With a permanent 7-byte serial number ID for unique identification, these tags ensure reliable and secure data handling. Unlike "Classic 1K" cards, NTAG technology provides enhanced security and broader device compatibility by avoiding industry patent restrictions.

Compatible with smartphones and NFC-enabled devices, these tags can be easily programmed using the PN532 NFC/RFID breakout board or the Adafruit NFC/RFID Shield for Arduino. The sticker dimensions are 4 x 2.5cm, making it a convenient and discreet option for multiple applications.