POS machine with PSTN,TCP/IP, WIFI 1.32-bit CPU, ... applicationsMultiple choices of integrated communication modules, such as PSTN, TCP/IP and Wi-FiSupports complete version ... SLE4428 memory cardPSAM Slot2 / 3 SAM slots, compliant with ISO7816; Supports PPS protocolContactless Card Reader (Optional)Supports Mifare ... Optional)802.11b/g, supports full SSLv2/3 TLSv1Peripheral Port 2 RS-232 (up to 3), 5V @ ...