... at 13.56MHz nominalNXP Mifare1 S50, Mifare1 S70, Desfire MF3ICD40,Mifare Ultralight, Icode1, Icode Sli , Legic mim256, JWL872,TI256, ... red-write card can provide you with different version of access password or logic encryption4.every HF card(13.56MHz) ... serial No programmed by LaserApplicationsRFID Field, such as Patrol system, Attendance system, Access control System, Business card system, and etc.