Size 4.3″ -Max. Resolution 480*272 -TFT LCD with LED Backlight -Backup SRAM 128K -32MB Memory -With Real Time Clock (RTC) – USB2.0 -USB1.1 -COM1:RS232/422/485 -COM2:RS422/485 -COM3:RS232 -Front Function Keys 23 Keys -24VDC