Motherboard FeaturesCPU Single Intel® Xeon® 3400 and L3400 Series, CoreTM i5Dual Core, CoreTM i3, Pentium® and Celeron® processors(LGA1156 socket)Memory Six (6) 240-pin, DDR3 ECC SDRAM DIMM sockets withsupport for up to 16GB of UDIMM or up to 32GB of RDIMM(with Xeon CPU only) 1333/1066/800 MHz memory.Supports dual-channel memory architectureDIMM sizesUDIMM 512MB, 1GB, 2GB, and 4GBRDIMM 512MB,1GB, 2GB, 4GB, and 8GBChipset Intel® 3420 ChipsetExpansion Slots One (1) SBX PCI-E 2.0 (x16 or x8+x8) SlotOne (1) SBX PCI-E 2.0 x4 in an x8 SlotOne (1) UIOP Slot (Universal I/O Riser Card Power Connector)Integrated Graphics Matrox® G200eW with 16MB of memoryNetwork Connections Two Intel 82574L Gigabit (10/100/1000 Mb/s) EthernetControllers.Two (2) RJ-45 Rear IO Panel Connectors with Link andActivity LEDsSingle Realtek RTL8201N PHY to support IPMI 2.0I/O Devices SATA ConnectionsSATA Ports Six (6)RAID Support Windos O/S: RAID 0, 1, 5, 10Linux O/S: RAID 0, 1, 10Integrated IPMI 2.0IPMI 2.0 supported by the WPCM450 Server BMCUSB DevicesTwo (2) USB ports on the rear IO panelFour (4) USB devices via three (2) USB headers for frontaccessOne (1) Type A internal connectorSerial (COM) PortsTwo (2) Fast UART 16550 Connections (One 9-pin RS-232port on the back panel, and one 9-pin header onboard)Super I/OWinbond Super I/O W83627DHG UBE