The full name of M1 card is NXP Mifare1 series. There are two commonly used models, S50 and S70. At present, domestic chips are compatible with M1 cards, which belong to non-contact IC cards. The most important advantage is a multi-function card that can be read and written and has high security. These advantages are inseparable from its own structure. [Details]

Generally speaking, the CPU card chip means that the chip contains a microprocessor, whose function is equivalent to a microcomputer. The metal chip on the integrated circuit card (IC card) that people often use is the CPU card chip. [Details]