Adafruit 13.56MHz RFID/NFC Clear Tag - NTAG203 Chip

This 13.56MHz RFID/NFC tag, equipped with an NTAG203 chip, is perfect for applications such as train or bus passes, information sharing, and contactless payment systems. Its versatility extends to any system that requires a proximity card feature.

Built with a small RFID chip and an antenna, it's passively powered by the reader/writer from a few inches away. It's compatible with almost any 13.56MHz RFID/NFC reader, provided they support ISO/IEC 14443 Type A cards. This ensures broad compatibility, though it's best to verify standards if other encoding systems are used.

These durable tags offer a writable EEPROM that can store up to 144 bytes of data across 4-byte banks, enduring over 10,000 re-writes. For data operations, tools like the PN532 NFC/RFID breakout board or the Adafruit NFC/RFID Shield for Arduino are recommended for easy reading and writing tasks.

Each tag has a unique, unchangeable 7-byte serial ID for differentiation, adding an extra layer of management and security. The NTAG chipset, recognized as 'Type 2', is universally compatible with smartphones, bypassing the restrictions associated with "Classic 1K" cards, which require specific chipsets or licenses. Enjoy a seamless and secure user experience without compromising on compatibility.