NXP NTAG 223/224 DNA NFC Card

Union Smart manufactures premium NXP NTAG 223 and NTAG 224 DNA NFC Cards for B2B enterprises and luxury brands worldwide. Operating at 13.56MHz and fully compliant with NFC Forum Type 2 Tag standards, these high-security smart cards utilize advanced SUN (Secure Unique NFC) message authentication to provide cryptographic proof of authenticity on every smartphone tap. They are the ultimate solution for brand protection, anti-counterfeiting, secure supply chain tracking, and exclusive customer loyalty programs. Benefit from our factory-direct OEM/ODM pricing, custom printing, and secure chip encoding with an MOQ starting at 1,000 pcs.

NXP NTAG 223 / 224 DNA — High-Security Anti-Counterfeiting NFC Cards

The NTAG 223 and 224 DNA chips represent the cutting edge of NFC security. While standard NFC tags (like NTAG213/215) store static data that can easily be copied by counterfeiters, the DNA series generates a dynamic, cryptographically signed Secure Unique NFC (SUN) message every time it is tapped.

This means that each smartphone read produces a unique URL that cannot be cloned or reused. When verified against a cloud server, it instantly proves the physical product's authenticity, making these cards the gold standard for high-value asset authentication and secure IoT-driven user experiences.

Chip Selection Guide

We supply blank or fully custom-printed NFC cards using the exact NXP DNA silicon tailored to your security project:

• NXP NTAG 223 DNA: The standard high-security model featuring 144 bytes of user memory. Ideal for secure product authentication, smart packaging, and document verification.
• NXP NTAG 224 DNA: The expanded capacity model featuring 208 bytes of user memory. Perfect for applications requiring the SUN security feature alongside additional on-chip data storage, such as detailed supply chain tracking information or enriched customer loyalty profiles.

Top B2B Industry Applications

• Brand Protection & Anti-Counterfeiting: Secure authentication cards for luxury goods, fine wines, spirits, and high-end apparel.
• Document Verification: Unforgeable certificates of authenticity, warranties, and secure ID badges.
• Supply Chain Control: Track products securely from factory to retail, preventing grey market diversion and fraud.
• IoT Authentication: Automated authentication of NFC-tagged consumables and replacement parts in embedded hardware devices (e.g., medical devices, premium coffee makers).
• Exclusive Customer Engagement: VIP loyalty cards that grant access to exclusive digital content, NFTs, or targeted promotions based on verified taps.

OEM Customization & Manufacturing Specifications

As a factory-direct OEM partner, Union Smart provides full personalization for your enterprise rollout:

• Standard Dimensions: ISO CR80 size (85.5 x 54 mm) — custom die-cut shapes and embedded tags available.
• Card Thickness: Standard 0.76 mm / 0.84 mm.
• RF Interface: 13.56 MHz (HF NFC), NFC Forum Type 2 Tag compliant.
• Card Materials: Standard PVC, Recycled PVC (RPVC), Biodegradable PLA, PETG, PC, Teslin, Bamboo wood NFC cards, and Paper.
• Premium Surface Finishes: Glossy, Matte, Frosted, Epoxy doming, Brushed metal effects, and Spot UV.
• Variable Data Printing (VDP): Laser engraved UIDs, DOD inkjet serial numbering, QR codes, Barcodes, and magnetic stripes.

Frequently Asked Questions (FAQ)

Q1. What is the difference between standard NTAG (213/215) and NTAG DNA (223/224)?

Standard NTAG chips store static data (like a basic URL or vCard). Anyone with an NFC reader app can clone the chip's exact contents and copy it onto a fake tag. The NTAG DNA series utilizes AES-128 cryptography to generate a dynamic Secure Unique NFC (SUN) message on every tap, making it mathematically impossible to clone or counterfeit.

Q2. Do users need to download a special app to verify the DNA card?

No. Because the SUN message is dynamically appended to a standard NDEF URL (e.g., https://yourbrand.com/verify?sun=xyz123...), it works natively with both Android and iOS (iPhone 7 and newer) smartphones. A simple tap instantly opens the browser and pings your verification server.

Q3. What is IoT Authentication?

NTAG DNA cards and tags are frequently embedded into high-value consumables (like medical reagents, printer cartridges, or water filters). The main device (like a medical analyzer) reads the DNA tag to cryptographically verify that the consumable is a genuine OEM part before allowing the machine to operate.

Q4. Can you handle the secure encoding of these DNA chips during manufacturing?

Yes. As a highly secure OEM manufacturer, we provide secure bulk encoding services. We can inject your master cryptographic keys and program the dynamic NDEF URLs in our secure facility before the cards are shipped to you.

Q5. Do you offer wholesale pricing for B2B anti-counterfeiting projects?

Yes. We offer highly competitive, tiered wholesale pricing for large-scale enterprise deployments. Our standard MOQ is 1,000 pieces, but we regularly manufacture millions of secure DNA tags and cards for global luxury and tech brands.