This 13.56MHz RFID/NFC Card is a blank, rewritable proximity card with 1KB of EEPROM storage and a unique 4-byte ID, compatible with ISO/IEC 14443 Type A readers such as the PN532. This is a blank 13.56MHz RFID/NFC card - often used for train/bus passes but also found in other systems where a proximity card is desired. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away. These can be read by almost any 13.56MHz RFID/NFC reader but make sure it can handle ISO/IEC 14443 Type A cards as there are a few other encoding standards (like FeLica) They are tested and work great with both the PN532 NFC/RFID breakout board and Adafruit NFC/RFID Shield for Arduino! These chips can be written to & store up to 1 KB of data in writable EEPROM divided into banks, and can handle over 100,000 re-writes. You can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino to read and write data to the EEPROM inside the tag. There is also a permanent 4-byte ID burned into the chip that you can use to identify one tag from another - the ID number cannot be changed. These use a ISO/IEC 14443 Type A chipset, which used to be the 'classic' NFC chipset. In ~2014, the NFC forum decided not to support this chipset anymore, so newer phones do not support it. This only matters if you're trying to use this tag with a phone/tablet. Features * 13.56MHz RFID/NFC blank card with passive power technology * ISO/IEC 14443 Type A compatible * Suitable for transit passes, access control, and proximity card applications * Readable by most 13.56MHz RFID/NFC readers * 1 KB of writable EEPROM storage capacity * Supports over 100,000 re-write cycles * Permanent 4-byte unique ID for tag identification * Compatible with PN532 NFC/RFID breakout board and Adafruit NFC/RFID Shield for Arduino * Operates at 2-3 inches read distance (passively powered) * Not supported by newer smartphones (post-2014 NFC forum decision) Specifications * RFID chip specification: * 1 KiloByte (8 KiloBit) non-volatile EEPROM storage * Built in encryption engine with 48-bit key * 4 Byte unique identifier burned into the chip * 13.56 MHz frequency * Tag specification: * 85.5mm x 54mm x 1mm * 6.3 grams * Works about 4" away from reader Package Contents * 1x 13.56MHz RFID/NFC Card - Classic 1K https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2023-03-06 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2023-12-27 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2024-09-19 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2024-11-29 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2024-11-30 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2025-11-28 https://elecena.pl/product/22713207/13-56mhz-rfid-nfc-card-classic-1k 2025-11-29