Adafruit MiFare Classic (13.56 MHz) RFID Tag Credit Card

An empty MiFare Classic Card - the classic RFID card in credit card format.

The card contains an NXP S50 chip and is powered by the RFID reader via induction as long as it is no more than about 5 cm away.

This tag can be read by any 13.56 RFID/NFC reader that supports MiFare cards. Naturally, this tag works with our RFID shield for Arduino and can be read and written using the corresponding library.

This RFID card has 1 kByte of memory, divided into different memory banks, and can be rewritten up to 100,000 times. Additionally, the card has a unique 4-byte ID permanently stored, which is used for card identification. This ID cannot be changed.