xcrfid Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable IDIC Card for Copy Clone Backup

Multiple frequencies, The tag made by UID changeable zero sector writable with T5577 rewritable chip ., XCRFID UID changeable magic card is 4 byte UID , zero sector can be writable , can be copy back up S50 MF 1K cards, XCRFID T5577 card support back up EM4100 TK4100 EM4305 125_LF ID Card, Dual frequency,dual chip,compatible 125 and 13.56 access control system, Readable and rewritable,No external power require