PI3070i HMI Winmar New Style 7 inch HMI PI3070i Faster screen update, Faster screen switch, Better. communication stability. Hardware: CPU Cortex A7 528MHz,128M FLASH, 128M DRMIII RAM. Display size: 7 inch. Resolution: 800×480 TFT LCD, 16,000k colors. Interface: COM1:RS485/RS422; COM2:RS232. Storage: Support Data Storage, U Disk.