22Inch MC5220 is glass+glass projective multi-touch capacitive hmi panel, with 800MHz ARM Cortex-A8 CPU and 256MB Flash +256MB DDR3 memory to improve the operation. And 1920x1080 resolution and 250cm/2 brightness. There are com1, com2,com3 with rs485, rs422, rs232 and ethernet for selecting on commucation to use. usally used in high-end equipment that requires a large screen to present a better confirgration screen.