GEN2 CUID Android App NFC Coin Card – 25mm Copper Coil, Changeable UID, Rewritable 13.56MHz 1K S50 Card

Unlock full control with the GEN2 CUID Android App MCT Modify Block 0 Changeable UID Card — a versatile, rewritable 13.56MHz NFC coin card designed for advanced RFID enthusiasts and security professionals! This transparent PVC card features a 25mm copper coil and supports the classic 1K S50 standard, but with a powerful twist: the unique Sector 0 Block 0 (serial number/manufacturer block) can be fully rewritten to any UID you choose.

Compatible with the NFC Android App MCT, this card allows easy modification right from your smartphone, giving you flexible control over access management and security systems. Built to ISO14443A protocol standards, it boasts 1k bytes of EEPROM memory with an impressive rewrite lifespan of up to 100,000 cycles.

Ideal for developers, security experts, or anyone needing a customizable RFID tag, this card supports common NFC readers and advanced devices like PM5/Pro, Proxmark3, and iCopy series for special writes, making it a must-have tool for cutting-edge RFID applications.

Why You’ll Love the GEN2 CUID Modify UID Card:

• Fully rewritable UID (Block 0) — program your own unique ID!

• Works with standard NFC Android App MCT for easy modification

• Transparent PVC with durable 25mm copper coil design

• Supports ISO14443A protocol & 1K S50 chip standard

• High EEPROM capacity: 1k bytes memory

• Long rewrite life: up to 100,000 times

• Read distance: up to 10 cm depending on the reader

• Perfect for RFID developers, security pros & hobbyists

Take your RFID projects and access control systems to the next level with this flexible, powerful GEN2 CUID Modify UID NFC Card — ultimate customization at your fingertips!