"ATOM D2550 FANLESS PPC WITH 12.1"" XGA LED BACKLIGHT, TOUCH, WITHOUT MEMORY; 12.1"" FANLESS PANEL PC WITH INTEL ATOM D2550 PROCESSOR; RESISTIVE TOUCH SCREEN; SYSTEM MEMORY UP TO 4 GB DDR3 1066 SDRAM; COM1/COM2 PIN9 RI/5V/12V ADJUSTABLE THROUGH BIOS; AUTO DIMMING LED BACKLIGHT; THE DUAL GBE LAN, 4 X SERIAL PORTS, 4 X USB PORTS, AND GPIO CONNECTOR; NETWORK 2 X 10/100/1000 MBPS ETHERNET I/O PORTS 4 X SERIAL PORTS: 3 X RS-232, 1X RS-232/422/485 (ADJUSTABLE THROUGH BIOS)"