NFC (Near Field Communication) cards are a type of smart card that use radio frequency identification (RFID) technology to communicate with compatible devices. They operate at a frequency of 13.56 MHz and have a range of about 4 centimeters.
NFC cards can be used for a variety of purposes, including contactless payment, access control, transportation ticketing, loyalty programs, and more. They are widely used in smartphones and contactless payment systems such as Apple Pay and Google Wallet.
NFC cards are more secure than traditional magnetic stripe cards because they use encryption and authentication to protect data transmission. They also have the ability to be updated and reprogrammed over-the-air, which makes them a flexible and versatile solution for a wide range of applications.
Overall, NFC cards are a convenient and secure way to transmit information wirelessly between devices, and they are likely to become even more popular as more devices become NFC-enabled.
