13.56Mhz 1K RFID CUID Card Changeable Block 0 Rewrite For MCT Clone. $0.18-$0.23 / Piece. 1000 Pieces ... Contact Supplier. 1/6. 13.56Mhz RFID CUID Tag Keytag Card UID Changeable Block 0 Writable Keychain for NFC Andriod MCT Clone Duplicate. $0.10-$0.35 / …Features: Could be modified many times Organized in 16 sector with 4 blocude 16 bytes) Specification: Frequency:13.56MHz Protocal:ISO14443A Capacity:1K byte EEPROM memory Rewrite times:100,000 times Read distance:0-10Cm(depend on the R/W device) Material:PVC Dia Size:25mm Initial key:FFFFFFFFFFFF(12F) Application: …UID Changeable card new version ,The card is fullypatible with 13.56mhz MF 1k card, 4byte UID. The block0 (the block where the UID is located) of the card can be modified arbitrarily and repeatedly. Block0 is modified directly with ordinary MF reader（Like ACR122U-A9）, no special equipment is required. The SAK value can be changed to 0x88, 0x18, and 0x19 e …Ic Cuid Uid Changeable 1k 13.56mhz Keyfob Block 0 Writable - AliExpress The description of ic cuid uid changeable: If you need to open the ic cuid, the tag number on the card may be able to wake up, then it can be read. This keyfob block is a solution for creating a new keyfob. Easy to use, no installation required, just plug in and play.