XCRFID 13.56mhz MF1k S50 MF4K S70 0 Block Writable 7 Byte UID Changeable Rewritable RFID Card Chinese Magic Card by (MF1K 7byte 5pcs)

Description

🔐 Unlock the future of secure access with customizable NFC magic!

The XCRFID UID7B1K S50 RFID card operates at 13.56 MHz with a 7-byte rewritable UID, designed exclusively for use with the ACR122U-A9 device. This pack includes 5 standard-sized, high-precision smart cards ideal for secure, customizable access control and advanced NFC applications.