... Silverthorn-XL Z510P-1.1GHz, Z530P-1.6Ghz optionalChipsetIntel System Controller Hub US15WP SOC Chipset Supports 400/533MHz FSBMemoryOnboard 1G DDR2 ... MemoryUSB6xUSB 2.0/1.1, support boot managerDisplayIntel System Controller Hub US15WP,support H.264,MPEG2,MPEG4,VC1,and WMV9 ... Supper I/O chip, COM1-COM4 support 9 wire RS232,and COM2 can support RS232/RS422/RS485 via jumper setting.COM5-COM6 support ...