... 3.(Optional)support contactless smart cards in accordance with ISO14443 Type A/B, such as Mifare1 series Ultralight, Mifare1(S50), Mifare4 ... a standard SAM socket, support contact smart cards in accordance with ISO7816.5.(Optional)GPRS module-----working frequency: EGSM: 900/ ... module2. Read/write Philips Series or RFID module in accordance with ISO14443A/B or ISO15693, such as Mifare series, DESfire, ...