Free Sample Anti-Slip NFC Contactless IC Smart Card Mini Tag Business Card with External Chip Payment Blank RFID Card

Structural features: The main difference between an external chip smart card and a regular smart card is that its chip is not embedded inside the card base but is placed externally on the card surface or edge through a special interface or packaging form. This design makes it easier for the chip to interact and connect with external devices, facilitating operations such as chip manipulation and updates. Working principle: An external chip smart card connects to a card reader or other devices through an external interface. Once inserted into a card reader or connected to a related device, the integrated circuit within the chip processes data, performs encryption and decryption, and conducts identity verification based on received instructions. The chip stores the user's relevant information, keys, and various applications, enabling secure data reading, writing, and interaction. Application fields: Due to its high flexibility and scalability, the external chip smart card is widely used in the financial payment sector, such as in some new payment cards that adopt an external chip design to enhance payment security and convenience. In the field of identity verification, for instance, in ID cards and access control cards, the external chip facilitates quick and accurate identity information reading. It is also applied in some Internet of Things devices and industrial control areas for device identity authentication and data encryption transmission. Security performance: External chip smart cards typically offer high security performance. The chip employs advanced encryption technology to protect stored data and transmitted information from being stolen or tampered with. Moreover, the smart card itself has a tamper-proof physical structure. Even with the chip placed externally, special packaging and protection measures ensure its security and stability in various environments.