Frequency: 13.56 MHz
Size: 85mm x 54mm x 0.9mm
Material: PVC, Waterproof
IC tag is suitable for 13.56MHz ISO14443A S50 card reader and reading distance is 0 - 10cm
(Reading distance depends on readers, not the cards)

1K byte EEPROM memory (768 FREE BYTES availability)
Organized in 16 sector with 4 blocks of 16 bytes each (one block consists of 16 byte)
Write endurance 100,000 cycle
ISO standards :ISO 14443 / 14443A

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• Tutorial: RFID Keyring Tag (13.56MHz) + Arduino - Read UID, Read/Write Blocks, Access Control Patterns
  This tutorial is a comprehensive, practical guide to using a <strong>13.56MHz RFID keyring tag</strong> (Leobot Product #564) with Arduino projects. You’ll learn what hardware you need, how to wire a reader module, how to read a tag UID, how memory is typically structured, how to read/write data blocks, and how to build robust access-control style logic (relay unlock, attendance logging, asset checkout, etc.).