MIFARE Classic S70 4K Cards
MIFARE Classic S70 4K cards are high-frequency (13.56 MHz) contactless smart cards with 4 kilobytes of EEPROM memory organized in 32 sectors of 4 blocks and 8 sectors. These ISO/IEC 14443-A compliant cards feature built-in CRYPTO1 encryption for secure data transmission, a unique identifier (available in 4-byte or 7-byte options),…
Technical Specifications
The MIFARE Classic S70 4K is a high-frequency contactless smart card manufactured by NXP Semiconductors. These cards operate at 13.56 MHz and offer 4096 bytes (4K) of EEPROM memory organized in 32 sectors of 4 blocks and 8 sectors. Each card features a unique identifier (available in 4-byte or 7-byte options) and supports data transfer rates up to 106 kbps with a reading range of up to 10 cm depending on the reader.
Key Features
- Memory: 4 kilobytes (4096 bytes) non-volatile EEPROM storage
- Security: Built-in CRYPTO1 encryption with 48-bit keys
- Communication: ISO/IEC 14443-A compliant protocol
- Physical Specifications: Standard CR80 size (85.5mm × 54mm)
- Material: Durable, high-quality PVC suitable for card printing
- Packaging: Available in boxes of 200 cards for bulk deployment
- UID Options: Available with either 4-byte or 7-byte unique identifiers
Applications
MIFARE Classic S70 4K cards are widely used across various applications requiring larger memory capacity:
- Access control systems for buildings and secured areas
- Public transportation ticketing with multiple fare options
- Loyalty and membership programs with extensive user data
- Cashless payment systems with transaction history
- Event ticketing with seat information and access levels
- Student and employee identification with additional data storage
Advantages
- Enhanced Memory: Four times the storage capacity of standard 1K cards
- Versatility: Compatible with numerous RFID readers and systems
- Printability: Supports direct printing using dye-sublimation or thermal transfer printers
- Cost-Effectiveness: Economical solution for large-scale deployments (200 cards per box)
- Reliability: Proven technology with widespread industry adoption
- No Power Required: Passive design draws power from the reader’s electromagnetic field
