• The FM11RF08-M1 is a contactless smart card / access control card.

• It uses MIFARE Classic / MIFARE 1 technology (1 KB memory).

• Operating frequency: 13.56 MHz.

• Interface: ISO/IEC 14443 Type A.

• Each card has a unique serial number (UID).

Technical Specifications

Security & Functionality

• The card uses security / encryption, specifically CRYPTO1 (used in MIFARE Classic).

• Because of MIFARE Classic architecture, its security is not the strongest among modern RFID cards — Classic cards have known vulnerabilities. (Note: depending on your application, this may or may not be a concern.)

• It supports customizing access permissions per sector.

Reliability / Durability

• Supports very high rewrite endurance (100,000+ cycles) — good for repeatedly reprogramming / re-issuing.

• Long data retention (~10 years) ensures stored access credentials / data stay valid over time.

• The card’s build (PVC) is relatively robust for normal usage. Working temperature range is quite wide.

Use Cases

• Access Control Systems: For buildings, offices, and facilities using RFID readers to grant or deny entry.

• Time & Attendance: Used as employee badges to clock in / out.

• Membership Cards: For clubs, gyms, or other membership‐based systems.

• Access + Data: Because it’s read/write and has 1 KB memory, you can store some small data / logs, although not huge volumes.