RFID/NFC Card 13.56MHz 1kB

A standard 13.56MHz RFID card, blank and ready to be programmed! The card contains a small RFID chip and an antenna, and is passively powered by the reader/writer module when placed nearby.

These can be read by most 13.56MHz RFID reader modules, so long as they support the ISO/IEC 14443 Type A cards.

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 and a permanent 4-byte unique ID is programmed at the factory. 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.

RFID Chip Specifications:

• 1 KiloByte non-volatile EEPROM storage
• Built in encryption engine with 48-bit key
• 4 Byte unique identifier assigned to every tag at the factory 
• 13.56 MHz operating frequency

Tag Physical Specifications:

• 85.5mm x 54mm x 1mm
• 6.3 grams

Awesome RFID Project: http://www.instructables.com/id/RFID-Controlled-Door/

Review: https://www.youtube.com/watch?v=nn-nuhAByRk