Enhanced RFID Access Control Coin Card with NFC Smart Chip and Rewriteable Capabilities (20pcs)

🤖 25MM RFID Access Control Coin Card - NFC Smart Chip Tag

🤖 Introducing the versatile 25MM RFID Access Control Coin Card, designed for seamless integration into your security and access control systems. This NFC smart chip tag operates at a frequency of 13.56 MHz and is fully compliant with the ISO14443A protocol, making it a reliable choice for various applications.

🧩 This innovative card functions identically to standard IC cards that utilize the 1K S50 standard. Its main feature is the ability to modify the Sector 0 Block Zero, which serves as the Serial Number or Manufacturer's Block (Chip UID). This means you can program it with any UID you desire, offering flexibility and customization for your specific needs.

Specifications:

• UID Card Block 0: Can be modified arbitrarily to suit your requirements.
• Modification Method: Easily updated with standard MIF read-write devices.
• Default Password: 12F, FFFFFFFFFFFF for initial access.

Technical Details:

• Frequency: 13.56 MHz
• Capacity: 1k bytes of EEPROM memory
• Rewrite Capability: Up to 100,000 times for extensive use
• Modulation Technique: ASK Manchester coding
• Reading Distance: Effective range of 0 to 10 cm, dependent on reader specifications
• Material: Durable PVC with a secure glue sticker finish
• Size: Compact 25MM round design
• Initial Key: FFFFFFFFFFFF (12F)

🛡️ Please note: The UID cannot be revised using typical mobile NFC applications. For the most effective programming and writing experience, we recommend utilizing compatible hardware such as the ACR122U NFC reader/writer, Super Reader, 300CD, PM5/Pro, Proxmark3, or iCopy3/8 X100.

⚡ Importantly, these 13.56 MHz UID tags are specifically designed for use with compatible devices and do not support 125KHz frequency systems. Ensure that your equipment is suitable for these tags to maximize functionality and reliability.