13.56MHz CUID White Card, Rewritable UID, Compatible with Mifare Classic, for Access Control and Attendance Systems, Custom Logo Printing Supported

Product Introduction: 13.56MHz CUID White Card

Size: Standard size: 85.5 mm × 54 mm × 0.84 mm. Custom shapes available (e.g., circular, square, keychain).  

Thickness: 0.84 mm, with customization options up to 1.2 mm.  

Material: White PVC material. Other options include transparent PVC, PET, and ABS.  

Read Range: 2–10 cm (depending on reader power and environment).  

Surface Finish: Glossy, matte, or frosted finish available. Supports personalized printing effects.  

Surface Coding: Supports UID inkjet printing (customizable format), QR code, text, and logo printing.  

Customization: Customizable size, shape, color, and print content (e.g., corporate logo, serial number, design).  

Operating Temperature: -20°C to 70°C (suitable for a wide range of environments).  

Packaging: 200pcs/box, 2000pcs/ctn

Weight: 7g/pcs,14kg/ctn

Introduction to 13.56MHz CUID Chip

Memory Capacity: Compatible with Mifare Classic 1K (S50) protocol. 1KB EEPROM storage, organized into 16 independent sectors, each with 4 blocks.  

Operating Frequency: 13.56 MHz (ISO14443 Type A standard).  

UID Features: Supports full-sector UID rewrite capability (unlike standard M1 cards), allowing simulation and modification of the 0-block UID value.  

Data Security: Supports custom key encryption and read/write permission control.  

Chip Characteristics:

  - Rewritable up to 100,000 times, with data retention ≥ 10 years.  

  - Compatible with Mifare Classic readers, ensuring strong compatibility.  

  - Default UID is random at the factory, but fixed UID can be customized for bulk production.

Product Introduction: 13.56MHz CUID White Card

Access Control System Upgrade: Replaces original M1 cards to solve the issue of non-modifiable UID, compatible with legacy access control systems.  

Testing and Development: Used for RFID device debugging, system compatibility testing, and development validation.  

Multi-Function Card Systems: Integrates access control, payment, parking, etc., with customizable permission management.  

Smart Home Applications: Links with smart door locks and home appliance control systems for identity recognition.  

Campus/Corporate Cards: Used for student IDs, employee badges, library cards, etc., with dynamic data updates.  

Gaming/Transportation Cards: Compatible with some gaming consoles and transportation card systems (subject to local laws and regulations).  

Temporary Permission Management: Suitable for short-term permission scenarios like meeting check-ins and visitor cards, with flexible UID reset capabilities.

Notes

1. CUID cards require readers that support the Mifare Classic protocol.  

2. UID modification functions must comply with local laws and regulations, and illegal copying of encrypted cards is prohibited.  

3. Custom printing requires high-resolution vector files (AI/CDR formats recommended), with a normal color tolerance of ±5%.