... .Keypad: 12 Alphanumeric Keys and 7 Function Keys ; General description: MK-YPOS522A is an easy-to-use telephone POS for contact ... is a good option for high-end compact POS applications.MK-YPOS522A has all the bells and whistles that a modern ... , Mifare DESFire, ISO 14443 A & B, SONY FeliCaInternal PIN PadSupports MK/SK, Fixed, DUKPT; Supports dual and triple length TDES; Supports ...