3.5" TFT LCD 65536 colors3.8", 5.7" STN LCD 8 Shades of BlueARM9 32-bit CPU320 x 240 pixels4 function keys1M Flash Memory128K bytes SRAMSupports USB Host, direct connection to USB disk and printerUSB 1.1 for high-speed program and data download3 sets of COM ports for different communication protocolsMax. 8 different languages for multilingual screen editingTouch screens comply with IP65 NEMA4 standardsCE & UL approved