Block 0 (UID block) can be freely rewritten.
Default card keys: FFFFFFFFFFFF.
Supports Android NFC using MCT to modify the UID.
Note: Standard 13.56 MHz RFID readers/writers cannot write to CUID cards.
Compatible with Android NFC (MCT), ACR122U, iCopy 3/8, X100, PM5/Pro, 300CD, and fully supported by Proxmark3 for writing CUID cards.
Chip: CUID (Gen2)
Frequency: 13.56 MHz
Protocol Standard: ISO14443A
Operating Temperature: –20 °C to +60 °C
Data Retention: 10 years
Typical Applications: access control, attendance systems, patrol systems, business cards, transit cards, toll cards, and more.
