NXP MIFARE Classic Series Card

Union Smart manufactures premium NXP MIFARE Classic EV1 1K (S50), 4K (S70), and Mini (S20) smart cards for global B2B enterprises and system integrators. Operating at the standard 13.56MHz frequency and fully compliant with ISO/IEC 14443 Type A, these contactless RFID cards represent the world's most widely deployed technology for hotel room key cards, office access control, campus ID badges, and public transit systems. Benefit from our factory-direct wholesale pricing, comprehensive OEM/ODM custom printing, and bulk chip encoding with MOQs starting at 1,000 pcs.

MIFARE Classic EV1 — The Global Standard for Access Control

The MIFARE Classic family by NXP Semiconductors is the pioneer of contactless IC technology. With over 20 years of proven reliability and billions of units deployed worldwide, it is the foundational RFID chip for basic physical access control, time and attendance tracking, and closed-loop cashless vending.

The upgraded MIFARE Classic EV1 enhances legacy systems with improved security mechanisms and better read/write stability, remaining highly cost-effective for mass-market deployments.

MIFARE Classic Chip Selection Guide

We supply blank and custom-printed smart cards embedded with authentic NXP MIFARE Classic silicon:

• MIFARE Classic 1K (S50): The undisputed industry standard. Featuring 1Kbyte of EEPROM memory, it offers the perfect balance of cost and capacity for standard hotel door locks, basic office access control cards, and gym memberships.
• MIFARE Classic 4K (S70): A high-capacity variant offering 4Kbytes of memory. Ideal for multi-application environments such as university campus cards where a single badge must store access permissions, library data, and cafeteria balances.
• MIFARE Classic Mini (S20): A miniaturized 320-byte chip designed for space-constrained hardware, including wearable wristbands, smart key fobs, and embedded NFC tags.

Key B2B Application Scenarios

• Hospitality: Custom printed RFID hotel room keys compatible with major lock systems (e.g., VingCard, Salto, Saflok, Dormakaba).
• Corporate Security: Employee ID badges, proximity cards, time and attendance tracking.
• Education: Multi-purpose university and school campus ID cards.
• Leisure & Retail: Gym membership cards, VIP loyalty programs, and event ticketing.
• Public Transport: Legacy automated fare collection (AFC) and bus/metro passes.

OEM Customization & Printing Services

As a direct B2B factory, Union Smart provides full personalization to match your corporate branding and technical requirements:

• Standard Dimensions: ISO CR80 size (85.5 x 54 mm) — custom die-cut shapes available.
• Thickness Options: Standard 0.76 mm, 0.84 mm, or custom.
• RF Interface: 13.56 MHz (HF RFID), ISO/IEC 14443-2 Type A compliant.
• Card Materials: Standard PVC, Recycled PVC (RPVC), Biodegradable PLA, PETG, PC, Teslin, Bamboo, Wood, 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 (HiCo/LoCo).

Frequently Asked Questions (FAQ)

Q1. Can I use MIFARE Classic 1K cards for my hotel door lock system?

Yes, MIFARE Classic 1K (S50) is the most commonly used RFID chip for hotel room key cards globally. It is compatible with many standard hospitality lock systems. However, we recommend checking with your lock provider (e.g., VingCard, Salto) to ensure they do not require a proprietary encrypted chip (such as Ultralight EV1 or DESFire).

Q2. What is the difference between MIFARE Classic 1K (S50) and 4K (S70)?

The primary difference is storage capacity. The 1K version contains 1,024 bytes of memory, which is perfect for standard door access and basic ID data. The 4K version contains 4,096 bytes, making it ideal for environments where multiple applications (e.g., access control, cafeteria payments, and library lending) must be stored on a single campus card.

Q3. Is MIFARE Classic secure enough for financial payments?

No. While MIFARE Classic features basic sector-level security, it uses older cryptographic algorithms that are susceptible to cloning. For secure cashless payments, government IDs, and high-security enterprise access control, you should upgrade to the MIFARE DESFire EV3 series, which utilizes advanced AES encryption.

Q4. Can you print our company logo and sequential numbers on these cards?

Absolutely. We provide comprehensive OEM services, including full-color CMYK offset printing of your artwork, along with variable data printing such as QR codes, employee names, and laser-engraved chip UIDs (Unique Identifiers).

Q5. Do you offer wholesale pricing for bulk B2B orders?

Yes. As a factory-direct manufacturer, our pricing scales significantly with volume. Our standard minimum order quantity (MOQ) is 1,000 pieces, and we regularly fulfill mass production orders for system integrators and large enterprises.