Chapter 1 General Information 31.2 Features• Ultra-compact size single board computer as small as a 3 1/2"hard disk drive (145 mm x 102 mm)• On-board Cyrix GXM-233/200 CPU• Up to 128 MB system memory by SODIMM (SDRAM)• On-board VGA/LCD controller• On-board LVDS interface• On-board 100Base-T Ethernet interface (PCM-5820/5820Eonly)• Supports CompactFlash card• Built-in Enhanced IDE (AT bus) hard disk drive interface• On-board mini-DIN PS/2 keyboard/mouse connector• Two serial ports: one RS-232, one RS-232/422/485 or infaredselectable (uses 16C550 UARTs with 16 byte FIFO)• Upgradeable through PC/104 module• Green engine with sleep mode and low power consumption• Single +5 V power supply