What is a Dual Chip RFID Card?

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A blog to give you a comprehensive understanding of Dual Interface Card!

In our daily life, whether it is swiping a bus, entering or leaving a community, or making a payment, a small card often plays the role of a “pass”. And today we are going to talk about the smarter and more powerful Dual Chip RFID Card.

What is a Dual Chip RFID Card?

Dual Chip RFID Card, also known as Combination Card or Dual Port Card, is a smart card that combines contact and contactless communication methods into one. Simply put, it can be inserted into a device like a bank card, or it can be “swiped” like a bus card to complete the operation.

It combines the convenience of contactless IC cards and the security of contact IC cards, making Dual Chip RFID Cards very suitable for a variety of scenarios, such as:

Public transportation
Highway tolls
E-wallet
Financial services
E-commerce

This type of card is gradually becoming the new favorite in the IC card market, representing the development direction of smart cards.

Three Common Dual Chip RFID Card Structures

Type	System Relationship	Storage Method	Features
Type 1	Two systems are independent	Each has its own EEPROM	Simple functions, no interference with each other
Type 2	Systems operate independently	Share partial memory	Low cost, information can be shared
Type 3	Systems fully integrated	Share one CPU	True dual-interface CPU card, highest security

Among them, Type 3 is the most advanced and secure Dual Chip RFID Card on the current market.

Technical Parameters

To better understand the power of this type of card, let’s take a look at some of its core technical indicators:

Chip type: CMOS EEPROM technology
Available storage space: 32K bytes (or more)
Communication interface:
- Contact: ISO 7816, supports 9600bps~57600bps
- Contactless: ISO 14443 TypeA, supports 106Kbps~414Kbps
Data retention time: ≥10 years
Erase and write times: ≥100,000 times
Supported encryption algorithm: 1024bit~2048bit RSA
Voltage range: 2.7V ~ 5.5V
Operating temperature: -25℃~+50℃
ESD protection capability: ≥4KV

These parameters allow the Dual Chip RFID Card to operate stably in various complex environments.

Materials and Customization Options

Item	Description
Material	PVC / PET / ABS / PET-G
Size	Standard credit card size 85.5×54mm, thickness 0.76~0.86mm
Surface treatment	Glossy / Matte / Frosted / Mirror / Brushed
Printing method	CMYK four-color printing / silk screen / UV printing / digital printing
Optional processes	Barcode, QR code, magnetic stripe, signature strip, hot stamping, UID, etc.
RFID frequency	LF: 125KHz / HF: 13.56MHz / UHF: 860–960MHz
Compatible chips	EM4200, T5577, Mifare S50, NTAG213, ICODE2, Alien H3, Impinj R6P and others
Reading distance	1~10cm (depending on the chip and card reader)

In addition, the card supports color customization, printing pattern customization, and free sample testing is available.

Why Choose a Dual Chip RFID Card?

One card for multiple uses: transportation, payment, access control, membership system, all-round adaptation.
Compatible with multiple devices: both POS machines and access control card readers can be easily handled.
High security: Supports RSA encryption algorithm, data is more secure.
Easy to use: non-contact fast card swiping, contact stable and safe.

Summary

Dual Chip RFID Card is like an “all-purpose card”, which is convenient and safe and will be widely used in various industries in the future. It not only meets the high-efficiency needs in daily life, but also can cope with scenarios with high data security requirements. It is the preferred solution for modern smart cards.

Whether you are a government project leader, corporate procurement, or a decision maker for transportation system upgrades, Dual Chip RFID Cards are the next-generation smart card solution worth considering.