... A/B,Mifare.There are a lot of methods to use MK1850ICC, for example:MK1850ICC is fixed on POS machines first, ... authentication etc. fieldBasic configuration:Contact card reader : Support 2 SAM card, 1 IC card, complying with ISO7816 standard.Contactless card reader: 13.56M, complying with MasterCard ... ,PBOC 2.0 standard.External interface: 1 USB port to supply powder , not need connect power supply.