Contactless Card

RFID cards apply radio frequency technology from 125kHZ to 13.56MHz. It can be divided into non-memory (ID application) or memory(IC application) card.Non-memory card is read only card, which cannot store data. It can be only used as an ID card or a key. Data need to be stored in the computer system. The example is clamshell card (also called proximity card), which is widely used in the office and apartment.