10pcs/Set Smart RFID Block Writeable IC UID Card Editable Entry Access Card

Updated Version: Improved quality, better protection of the interchangeable UID chip, ISO14443A protocol support.

Writable: Block 0 of the card is writable; you can write your earned UID there. You can also use it to copy the UID of the MF S50 card.

Lightweight: Made of high-quality PVC for light weight and maximum durability.

Secure: Stable and secure data transmission, very easy and convenient to use. Special attention has been paid to security against fraud, mutual challenge and response authentication, data encryption, and message authentication to protect the system from tampering.