Contactless smart cards consist of a smart chip and antenna to allow the transmission of data between a card and a reader. The chip is the core component of the card that manages all the communication between the card and the reader. It also controls the data storage, data encryption and security access. There are many different chips to choose from. They vary in frequency, storage capacity and level of security.
Depending on your purpose for the card, a contactless smart card can operate when brought to within approximately 3 to 10 cm of a card reader Some contactless cards use radio frequencies and can accommodate an even longer distance.
Contactless smart cards have become increasingly popular these days. You can find them in use as bank cards, credit cards, transportation cards, hotel access cards, and security ID card etc.
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