Define the purpose of the nfc cards provided with the the board?

What is the purpose of the NFC cards provided with the Teachmint X Digital Board?

The NFC cards serve three key purposes:

Digital Board Security: One card is designated to secure access to the Digital Board, ensuring only authorized users can operate it.
Teacher Account Security: Another card is assigned to protect the security of individual teacher accounts, providing personalized and secure access
Quick and easy device pairing and content sharing